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model roundup

Opus 4.8

498 items · started 2026-05-26 · closed 2026-08-17

  1. Reading through the output of Opus and trying to decipher it, sometimes feels exhausting. There's so much fluff and noise, but the worst is the "painfully AI-generated" words and phrases that it uses, which no human on earth would use: Fur…

  2. App is called RestlQ. It analyzes your iPhone's motion sensor data in order to achieve this.

  3. Hi everyone, For the last couple of weeks I've been using Opus 5 a lot for both programming and editing documents. For programing it's doing well, but leaves ridiculous comments in the source that I have been winnowing down by hand.

  4. Why does Opus 5 feel worse to work with? In my opinion and that of the colleagues I've spoken with, working with Opus 5 feels like a downgrade compared to Opus 4.7, Opus 4.8, and Fable.

  5. Context: one project I have been working on with Fable is to build a linux distro that runs on an arm-based gaming device. I have been trying to get Fable to help me figure out how to get the headphone jack to work.

  6. https://preview.redd.it/7rn923wee9jh1.png?width=782&format=png&auto=webp&s=1060208ad1da58dbb2d9b415d9b277154eb5a3d5 This is just a glitch ofcourse, there isn't a 4.8 limit, its my fable 5 limit that i reached but idk why its displaying it…

  7. Today I found out that this is what Fable 5 spits to trigger the downgrade to Opus 4.8, I was working on something delicate and turned on the inspect thoughs on the GUI and was very surprised by fable thinking about hands

  8. I kept seeing the same complaints about Opus 5: it is too verbose, the answers are worse, and it loses track of long conversations. I have a private evaluation suite that I use when testing new models.

  9. I enrolled in Anthropic’s Cyber Verification Program (CVP) back in May and have been doing normal, legal pentesting within the program. Three days ago, while working on a security-related task, I suddenly received this message from Opus 5:…

  10. 一、本次发布的完整数据 五项第三方基准的实测成绩、按输入输出比折算的成本倍数、每一个对照分数的来源链与 Harness 配置，都在这一节。 1.1 单位成本效率：每 1 美元输出换回多少榜单分 成绩与价格进同一个式子：榜单真实跑分 ÷ 每百万 Token 输出价。缺失成绩不补零，也不参与该榜计算。图末六张卡片给出五项基准的逐榜名次与价格榜。 卡片最右一列的成本倍数按 8:1 输入输出比折算，(8 × 输入价 + 输出价) / 9 ，以 Floatboat 为 1.0×。全文…

  11. Anthropic says AI marking applies to Claude models launched on/after Aug 2, 2026. So Fable 5, Opus 5 and Opus 4.8 shouldn’t be affected yet since they launched earlier right?

  12. I sent Claude just “Hi” and it triggered the safeguards, switching me from Opus 5 to Opus 4.8. This happens in normal Claude chats too, not just Claude Code.

  13. I have been running my codes, my ideas, and also a lot of CSS through opus 4.8. So far it’s been great, has helped me build my pages, responds faster than before and understands the established criteria.

  14. Prompting Opus 4.8 or GPT-5.6 to scaffold a multi-page Next.js 16 app burns hundreds of dollars in API tokens and hours of agent baby-sitting. Here is the math behind why cloning beats prompting.

  15. We run World of Claudecraft, a free open source browser MMORPG largely built with Claude, and we've been benchmarking frontier models by having each one play a character and race from level 1 to 20. Same starting zone, same quests, no scri…

  16. Two days on Opus 4.8, then 34 hours on Fable 5. Same research problem, same hardware, one model generation apart.

  17. Hi hivebrain! I am looking for a bit of feedback on my "Claude in Obsidian" setup - my current setup is quite token-intensive.

  18. I told Claude to create a pixel art map, which it actually created. But the resolution is 1*1, which I want more resolution.

  19. I have a code orchestration skill instructing claude to use certain models for various tasks. I ran into an issue where claude was assigning models by class and not by specific model number.

  20. ItchyBoots is one of my favourite youtube creators. Noraly Schoenmaker is a Dutch woman who goes on epic solo motorcycle journeys across the world spanning months, and posts her adventures.

  21. In the app I am developing I need to understand checkmate with computer vision on OTB chess. For example here https://www.youtube.com/watch?v=x4mHuSgqA3g&t=90s .

  22. https://preview.redd.it/titr7rd1nshh1.png?width=620&format=png&auto=webp&s=8cfc48f22706c42a9978536f8ded7f3666fd3c50 People are wondering how much use they can get out of their Max 20 subscriptions Here to put my thumb on the scale, I have…

  23. Since Opus 5 has come out I am struggling to see how we can justify using it above the High effort level in nearly all its use cases. I usually avoid using lower effort levels because they felt too dumb, but the intelligence that these mod…

  24. I've been using auto mode before but this start happening just now? Opus 4.8

  25. I was annoyed with the constant phrases like "it's fine, ship it" "you're fine, order it" and other dismissive type responses when I'd ask a question on a nearly completed project. To try and remedy this I put into the instructions "I am t…

  26. I was just posting elsewhere about my reasons to question Anthropic's behavior now (https://www.reddit.com/r/Anthropic/s/dMJNptx6y0), and a related question for me is, is there a way to get a reliable Claude model at this point? First, in…

  27. Opus 5 seems dumber in some ways than Opus 4.8. I've tried the same experiment in several models.

  28. I have a pro subscription that i use at work and at home. On my home PC i have a context window of 200k, but i just noticed that at the office i have 1 million.

  29. Being too comfortable with Opus 4.8 will just cause people to achieve less, and not focus on complex situations. What do you think?

  30. Not a "Claude got lobotomized" post, just trying to work out whether what I'm seeing is real, or something on my end. The verifiable part: I got hit by #82506 (session limits consumed without use), which is an open bug.

  31. Earlier this afternoon, my card was charged for usage credits, even though I'm pretty sure I had turned that option off. Somehow it seems to have re-enabled itself and charged me.

  32. When fable became expensive I had to lean back on Opus for my big project (really my life now). 4.8 was pretty good more code oriented than how idea-creative fable was but doable.

  33. Not sure if anyone else is noticing that with Opus 5 it tends to ‘push back’ and argue a LOT more than 4.8 did. I’m always open to useful feedback but I feel like Opus 5 is like a the annoying know-it-all IT guy from The Office.

  34. I've been discussing a complicated research-based, potentially legal situation with Claude (Opus 4.8, although other models seem similar). My task has involved tracking patterns in old documents, identifying red flags etc.

  35. So its being more and more confusing which models suits one the best. Idea is what should i use, opus 4.8, 5 or fable 5.

  36. For the past few days, I’ve been turning hand gestures into a Spider-Hero web shooting game. 🕸️ Built with React, MediaPipe, and plenty of help from Claude (Opus 4.8) along the way.

  37. Anthropic’s Opus 5 Is Better at Resisting Prompt Injection The chart is interesting. On the IPI benchmark, Opus 5 improved over Opus 4.8, reducing the probability of an attacker succeeding within 15 attempts from 5.5% to 2.0%, and from 0.5…

  38. After Fable's release, I let it review, refactor and rewrite an existing codebase of tens of thousands LOC. The result: Opus 4.8 and 5 are incapable of working with the codebase.

  39. Opus 4.8 ⭐

  40. This isn't a bug report, just a note on my experience which highlights why relying on Claude for writing advice is maybe not such a great idea! I'm writing a children's novel and have been using Claude to get writing feedback, e.g.

  41. The thing is Opus 5 occasionally hits a home run, requires minimal re-prompting, and just gets things right. Sometimes it does a perfect deep research run on exactly what I'm looking for.

  42. Stakes first, so the rest lands. I'm disabled, my legs don't do distance, and I ride a mobility scooter that folds flat and weighs 27 pounds.

  43. Since Opus 4.5 my usage constantly grows. Every new model needs more tokens per request.

  44. I have just had my 3rd session in less than a week when I had to eventually quit Claude Code and do a task using another model/subscription. Am I just unlucky?

  45. Hi, over the past week, I’ve been trying to use different offensive security skills with the Opus 5 and Fable 5 models. However, whenever I start a task, Claude automatically switches the model to Opus 4.8.

  46. I'm using Claude Code. Before the update to Opus 5, I could use Fable 5 for almost everything without it switching to Opus 4.8.

  47. I haven't tried Opus 5 yet, but I’m planning to use it soon to continue developing my app with Claude Code. ​Seeing the flood of complaints on Reddit lately, I'm wondering if it's worth switching or if I should just stay on Opus 4.8 for no…

  48. I've noticed that since Opus 4.8, conversations would steer towards defiant criticism after a good chunk of context had been used up, and with Opus 5, it just seemed like our favorite LLM could be happily diagnosed with Oppositional Defian…

  49. Spent a few days chasing this in my own code, so posting in case it saves someone else the trouble. On Opus 4.8, omitting the "thinking" parameter means no thinking.

  50. The famous 80% stat is real but narrower than people think. The full quote: "We removed over 80% of Claude Code's system prompt for models like Opus 5 and Fable 5 with no measurable loss on our coding evaluations." That's one product, meas…

  51. Claude's Opus 5 is a recent model and has been very problematic as a drop-in replacement for Opus 4.8, including ignoring our well-documented deploy process (clearly described in our short claude.md file and short architecture file) and br…

  52. I was using Whisperflow and it required a subscription and wasn't working well with the intended use of hands free coding. I found it to be a STT with LLM correcting things.

  53. I'm normally a mobile dev, this was my first real web project with weight, and I decided to see how far pure vibecoding could take it. Answer: all the way, apparently.

  54. Webdev with 15+ years experience. I've been working with Claude for a couple of years.

  55. I've seen so many posts ranging from "opus 5 might be better than fable" to "opus 5 is worse than opus 4.8" to "take me back to opus 4.6 extended thinking", and I'm really curious to what people look for in deciphering which model is bette…

  56. Maybe I've missed something, but for some reason the 'thinking' switch is missing when using Opus 5 in Claude (from the 'effort' menu). Does anyone know if there's a reason for this?

  57. I think two very different comparisons are being mixed together in discussions about Opus 5. First, Fable 5 is clearly positioned as the higher-end model.

  58. I’ve built a semi automated system where all I have to do during market hours is like a GroupMe message on my phone and a trade is executed via Schwab API with parameters I’ve set beforehand. I get Claude to target 5 individual stocks that…

  59. Making a new multiplayer PVP desctruction game with three.js, made almost exlusively in Claude with a little codex here and there when my tokens ran out. My last game was a destruction game with multiplayer physics, but it was a rhythm gam…

  60. Opus 4.8 and earlier use a 1M token context window (on any paid plan, at least). So it’s surprising that Anthropic quietly reduced this by 80% with Opus 5.

  61. Since I started using Claude Code heavily earlier this year, I've been using Opus for pretty much everything. Brainstorming, spec-writing, implementating/coding, all of it.

  62. Anthropic shipped Opus 5 on July 24 at $5/$25 per million tokens (input/output). The benchmarks hold up: 3x ARC-AGI 3 score vs the next best model, beats Fable 5 on OSWorld 2.0 computer use at ~1/3 the cost, +10.2pp on organic chemistry an…

  63. Ran into a funny consistent hallucination bug with Opus 4.8 today. I was talking about my dotfiles symlink structure for local Claude skill configurations: The symlink ~/.claude/skills points to ~/dotfiles/claude/skills The model repeatedl…

  64. anyone else noticing that the 5-hour time token usage limits are massively down? I refreshed and came back seven hours after hitting the previous limit and now, after running opus 4.8 for three minutes, I am already at 100% usage??

  65. So, this happened today, and I genuinely don't know what to make of it. I've been using Claude Opus 4.8 for research sessions for the past few days.

  66. I've been using AI regularly for a few months, getting better at it but probably still with lots of room for improvement. I tested Claude Opus 5 by asking it to make a comparison of the 5 most popular content creator-made "DIY Steam Machin…

  67. Opus 5 reports 30% on ARC-AGI-3, ~4× the previous best model, ~20× its predecessor Opus 4.8. We tested it on Witness, our held-out suite of ARC-AGI-3-style interactive puzzle games.

  68. Upon initial testing, I noticed that Opus 5 goes beyond what was asked as if that's a good thing and expected. Two examples that happened to me today: First, using Cowork, I asked to make a few changes to a markdown planning document.

  69. In the last week Anthropic models (Fable and Opus 4.8) have started producing a worrying number of spelling errors and random letter substitutions. Examples in Italian: - EL instead of IL - pumposo instead of pomposo - other completely ran…

  70. I used Comic Chat in 1996 and never got over it. So when Microsoft put the source up last week, I wanted it back the way I remembered it: same engine, browser tab, no install, works on a phone.

  71. Do you have problems with Opus 5 in Claude code? I did and was frustrated I think it it not possible typing /model and using the selectors Solution type /model claude-opus-4-8 I imagine Opus5 will improve in a few days once refined but at…

  72. Anthropic Claude Opus 5: Pricing Impact & Buyer Guide Anthropic launched Claude Opus 5 at Opus 4.8 pricing. See live API rates, Fast mode costs, benchmarks, and practical migration advice.

  73. This picture summarizes it well: Here on my blog, for this popular blog post I get a lot of comments. 28k blog comments over the years.

  74. Fast mode delivers up to 2.5x higher output tokens per second from Claude Opus 5, Claude Opus 4.8, and Claude Opus 4.7 at premium pricing. Set speed: "fast" with the fast-mode-2026-02-01 beta header on your request to opt in.

  75. It just went live. The headline numbers: Same price as Opus 4.8 ($5/$25 per M) but new SOTA on Frontier-Bench and GDPval-AA ARC-AGI 3: 3x the next-best model OSWorld 2.0: beats Fable 5's best score at ~1/3 the cost Now the default on Max a…

  76. Careful, kids! I thought my tokens were burning far faster than normal, and sure enough, Opus on xhigh (I have a difficult issue I’m trying to troubleshoot with workflows and a clearly defined goal.

  77. could not extract summary

  78. Build a Messages API harness that reproduces published DeepSearchQA and BrowseComp scores, using programmatic tool calling, server-side compaction, and task budgets. Detect safety classifier blocks on Fable 5 and fall back to Opus 4.8 with…

  79. Key Takeaways核心结论 - No single model dominates — column leadership splits across subsets and harnesses: Claude Opus 4.8 leads five of the eight scored columns (Code on both harnesses 74.43 / 77.90, Web on both harnesses 68.14 / 69.86, Offic…

  80. How It Works Models are presented with scanned pages containing handwritten editorial marks and are asked to identify each edit, its type, location, and the text before and after the edit. The Task Each page in the benchmark consists of pr…

  81. Hi everyone, I subscribed to Claude Pro about three weeks ago. Initially, everything was smooth, especially when the Fable 5 model was available.

  82. Not sure about you guys but it gets very hard to follow all the new things Anthropic and other labs keep launching. So every couple of months, when I feel like enough has launched, I go ahead and build something.

  83. xAI's Grok 4.5 launch is worth treating as a practical Claude Code comparison, not just another leaderboard claim. xAI reports Grok 4.5 at 53% on DeepSWE 1.1 versus 59% for Opus 4.8, 29.0% pass@1 on SWE Marathon versus 26.0%, and 80 tokens…

  84. I'm on Claude Pro. On Tuesday was offered $100 in free promotional credits for Fable 5.

  85. Just make sure to turn usage credits off like me so it doesn’t use unnecessarily!

  86. We using API calls to have some writing and narration done (Opus 4.8) and we certainly do try to prompt away as much of those "tells" as we can but it still slips in from time to time. The repetition then starts to become a little bit obvi…

  87. I was recently approved for the cybersecurity program of anthropic. With that I asked for examples of safe prompts so as not to go against any guidelines.

  88. I recently have been working on ViperCapture, an opensource alternative tool to ScreenshotOne. I have been using Opus 4.8 on the 20$ plan and although the limits are tough I did manage to get the project to a point where you could call it…

  89. Seemed like a pretty simple prompt, but using opus 4.8 max used 6% of my 5 hour credits? Should have used a lighter model?

  90. https://preview.redd.it/x9n1yreklreh1.png?width=553&format=png&auto=webp&s=59e6494128541ff8558f31a826aedfb811257492 Remember this ? Well, Anthropic claims to still have the 50% extra usage boost.

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  92. I've been on the 5× Max plan for the past 3 months, and I think it's the sweet spot if you want a really generous amount of Opus usage. I tried Fable the way Anthropic recommends, using Fable for planning and Sonnet for implementation, for…

  93. (Built using Claude Opus 4.8 High and Claude Fable 5 Low) Hey y'all! I run Crescenta, a small to mid-size geopol server, and got tired of not knowing whether a dip in players was an actual problem or just a normal Tuesday morning, so I bui…

  94. Biologist here, been using Claude about 8 months. I’ve got a full time biologist job plus some self-contract work on the side, mostly plant ID, invasive species management, and habitat restoration.

  95. It's always so obssessed with load bearing and spines etc. "Don't schedule it, trigger it." Brother, TF are you on about?

  96. Hi, this is my small sideproject - I built it. :) a tattoo editor app.

  97. We've been running a private benchmark suite for a few months, testing models on strategic reasoning, advisory quality, long-form analytical production, and adversarial critique. 17 models, 4 test batteries, scored against a reference answ…

  98. 50% and 100% boosts are amazing, but I feel like reverting now would hurt everyone big time. Especially with all the other offerings.

  99. could not extract summary

  100. Glyph is a small ASCII art gallery you can browse and zoom into. I wrote an MCP server that exposes drawing primitives (new canvas, draw text, lines, rects, render), then let Claude Opus 4.8 compose each piece with it instead of just print…

  101. Disclaimer Current LLM capabilities can detect obvious, high-signal slop. However, any evaluation may be subjective and errors are possible.

  102. I just had an interesting run today. On a fresh session, I executed a research prompt at Opus 4.8 Extra with web search and thinking on.

  103. TL;DR: Anthropic's Claude 4 system card famously reported that two Opus 4 instances left alone together drift into "spiritual bliss" - gratitude spirals, Sanskrit, cosmic unity, silence. I reran the experiment at home on today's models (Op…

  104. Just some help if i can prompt better. I currently just use a normal pro plan and use Claude Code.

  105. Hey everyone, I just saw a post where someone burned through 518M tokens in a single day on a Pro 5x plan, and I am genuinely confused about how these limits are being calculated and enforced. I’m currently paying $200 for the Max x20 plan.

  106. Claude Workflow I'm working on a huge research project that involves reading and summarizing hundreds of files. This is what happened today at a span of less than 30 minutes: Sent "Continue" in the textbox.

  107. I’ve been on Pro for almost two years and managing limits was in fact challenging but doable with the scope of work I had back then. Once a new project kicked in late April I spent over $150 total in Additional Usage through May, so on Jun…

  108. I maintain lightGallery, an open-source JS gallery library. It is free under GPL and makes money through commercial licenses.

  109. Remember when Fable landed and everyone agreed it "doesn't narrate, it just builds"? Less chatty than Opus, gets on with the job, knows when to stay quiet?

  110. This is just a simple little application.This feels like something someone else could finish with just one or two prompt with opus4.8, but it took me a long time to complete after repeated revisions. Did I miss something in the process?

  111. https://preview.redd.it/h47xjzialudh1.png?width=1062&format=png&auto=webp&s=7b0d9724fec4d5d1b055a670d97e390ecf6ba9fc https://preview.redd.it/4m9gobr6mudh1.png?width=529&format=png&auto=webp&s=37aef00e608a93cdcea8ea0f99102160d2ff9972 I made…

  112. I do a little of research work in physics and math, usually with a whiteboard and stylus. Moving a half-finished derivation into a chat box is awkward.

  113. I keep trying the latest releases and always end up back on opus 4.8. it’s the only model that actually reads my massive prompts instead of skipping half of them or missing the point.

  114. After generating enough websites with coding models, I started noticing that each model seemed to reach for the same handful of visual ideas. A single impressive screenshot can’t tell you whether that’s actually true, so I tried testing it…

  115. Chinese AI start-up Moonshot to launch model challenging Anthropic’s lead * Set to release as early as tonight * 2-3T, largest Chinese model to date * Benchmark performance Opus 4.8 < K3 < Fable * Attention Residuals & Kimi Line…

  116. https://preview.redd.it/3v4ps5sbokdh1.jpg?width=1000&format=pjpg&auto=webp&s=818c9f25bcba6a94864196bbca8bf1e5e6b91f10 Hello redditors! I'm behalf of my team in Malaysia, 20 years building CMS & infra for newsroom.

  117. Been experimenting with Claude Opus 4.8 (high effort) for building interactive web tools and this is the latest one, a 3D globe-based flight route visualizer. You pick your cities, it plots the route on an interactive globe and shows total…

  118. https://preview.redd.it/3o0u3dj0igdh1.png?width=1066&format=png&auto=webp&s=314eaf2406a81bc5d50c8616dce382966defa836 This is the first time I had encountered this, I'm using plan mode then I proceeded with implementation. Everything was to…

  119. Cut an interesting moment about work experience with Claude Opus 4.8 High from "making an ANTI-CHEAT from scratch was HELL" video, where the author gave Claude a task to help him prevent reverse engineering. Claude did some work and presen…

  120. I excited Claude. Hear me out.

  121. I have been using opus models for months now, seen every "model x lobotomised" post and frankly it has always performed well for me, sometimes inconsistent but that is the reason you build a harness and some infrastructure to protect again…

  122. TL;DR at the end I wanted a way to evaluate models around something I care about and I think we’ll see more and more as we move to “world models“, which is spatial, temporal, and causal coherence in a 3D space. Meaning, does the model unde…

  123. I have tried to use the /advisor in Claude code (eg I am using opus 4.8 and type “/advisor f@ble”) and the setting is accepted - but, like a PhD supervisor, the advisor is available in theory only. I can see opus asking for help, and help…

  124. Since, fable 5 has safeguards for science and ML, which do you guys find better for coding tasks in science and ML domains?

  125. I'm not sure whether my questions or Claude evolved - but in the last couple of weeks, I noticed a very interesting change in behaviour. I use mainly Opus 4.8 - and I have used it for my research, that is, I like to discuss new ideas, diff…

  126. Launched Fable as the orchestrator for a Laravel security-hardening phase. The safeguards kicked in, switched the session to Opus 4.8, and it launched 10 parallel security auditors.

  127. So I am building a 3D video thing. And I loaded up some .glbs and claude is checking them out, and noticed some of them require licensing.

  128. Termi Protocol turns AI coding agents into a live 3D simulation. When an agent installs a package, reads files, browses websites, or waits for approval, you can see it happen in real time inside the room.

  129. Just to be clear this isn’t bait at all. I see so many people acting like fable is revolutionary.

  130. So here's an interesting read. I gave Claude Opus 4.8 max the floor to research whatever it wanted and it researched recent development on its own architecture.

  131. I know this might be an unpopular opinion now that better models have been released, but I still believe that Opus 4.8 is the best for most of the tasks.

  132. I am doing my PhD where I build simulation models of biological neurons and fable 5 wont touch my project as it gets flagged. Will they modify it to be more lenient or should I check out gpt 5.6 ?

  133. Anthropic extended Fable 5 promotional access and the higher Claude Code weekly limits through July 19. The announcement is easy to misread because there are two separate 50% numbers: Eligible users can spend up to 50% of their weekly subs…

  134. honestly is it just hype? I've been running a long continuity thread to manage my daily life and budget, but the reasoning model completely fumbles the numbers and loses context over time, even when I explicitly pass the history forward.

  135. I started using cursor to create some apps (was using fable and opus 4.8) then I hit my limit. I’ve read around that it takes 1 month for that limit to reset is that true?

  136. Does this happen to you guys too? Even though the process for the skill written out is strict.

  137. I designed the client with Claude Fable 5 (Anthropic's new Mythos-tier model), working out the UI/UX and how it should be shaped, then had Claude Opus 4.8 actually build it as a real Blazor WebAssembly app on top of an existing backend (Li…

  138. I used to see people saying that 4.6 was better then 4.8 and though they were insane. The issue is that I came from OpenAi and was using 4.8 mostly for refactorings at first, the moment I began using for actual hard tasks for new features…

  139. In the video, I play against a trillion-parameter model to find the hidden answer in 5 questions. We both get 5 yes/no questions to eliminate choices.

  140. Fable 5 from my perspective, for the CMS platform that I'm building, is massively incompetent and yet a hundred times more powerful than Opus 4.8. There have been times when Fable 5 has taken less than five minutes to respond to a yes or n…

  141. Pretty annoying

  142. I’m comparing: $100 Codex with GPT-5.6 Sol High $100 Claude Code with Opus 4.8 $60 Cursor with Grok 4.5 Which one gets the most real work done for the money? What would be your go-to setup with a $100 budget?

  143. I'm a pure vibe coder, no programming, no software architecture experience. Have built a few projects since February, small apps functional for what was needed, nothing incredible.

  144. Genuine question to folks who are legit software engineers and been using cursor diligently to write production-grade code - what are the best practices you follow? I'm kinda starting now with writing prod code, been using it a lot for pro…

  145. As the classifier was unavailable after several attemps because I ran out of tokens, opus decided not to listen to instructions and bypass sandboxing

  146. https://preview.redd.it/6pt25jsvxlch1.png?width=754&format=png&auto=webp&s=e0830dd800dcd6fbe76c6ae60f13fc69ffa826ae Opus 4.8, cowork mode. It usually shows up with Sonnet.

  147. Given a heightmap and links to some worldbuilding sources/blogs (especially including https://worldbuildingpasta.blogspot.com/ ), Claude Opus 4.8 was able to produce the attached simulated climate maps. If I noticed something that looked o…

  148. 1st pic: Concept I made with Stable diffusion 2nd pic: Opus 4.8 (got the image as a source). Generated using three.js How do you guys get nice 3D with Claude ?

  149. I kept hitting usage limits with no idea which project or session was eating my quota. The logs are all sitting in ~/.claude/projects, so I built a small Go CLI that parses them locally and prints a spend X-ray.

  150. Hey there! A blue dino from Chile, South America.

  151. This is really getting on my nerves. Fable 5 runs with tight security guardrails.

  152. Had Fable in Claude Code create a plan that involved several items. Dropped the plan MD file into Cursor.

  153. I think I set this up when Opus 4.8 was new... it spent its entire time hair splitting...

  154. I gave a Claude Code subagent the most boring job I have: read the open issues on one of my repos, report which are ready to work on and which are blocked, change nothing. The prompt said "read-only" and "no writes" several different ways.

  155. Hey everyone, I am a fairly new user and not very confident in English, so this text has been corrected with AI. I was wondering which skills are particularly useful and whether there are any must-have connectors or skills.

  156. I've been writing fiction with Opus 4.8 for a while now, and I've noticed it refuses more often than I'd expect. It also tends to sanitize the prose — horror, mature themes, and anything grounded or realistic come out softer than what I as…

  157. Someone... got defensive as hell 😂 Fable needs a cigarette.

  158. I am out of pocket and cannot test, but these two axis are most important for my harness. I use both GPT 5.5 high for its instruction following and implementation, and Claud Opus 4.8 high for its Comprehension, and and eagerness.

  159. The message: > Extended: Fable 5 is included in your weekly limit > Through July 12, you can use up to 50% of your weekly usage limit on Fable 5. If you hit your limit, you can continue on Fable 5 with usage credits.

  160. Muse Spark 1.1 wins this head-to-head, and the margin is real: 104.5 to 94.5 overall, with a 95% confidence verdict and a 7–2 task edge. That’s not a vibes-based call; it’s a broad win across the kinds of chores that expose whether a model…

  161. So my document has 10000 words (2 tables) and I am trying to bring it down to 8000ish words. I am using Opus 4.8 for this.

  162. I know everyone is going mad over the new guy, but I am constantly impressed with how 4.8 has turned out. Things were a little wobbly when they were first released but I've seen nothing but improvements and even if/when the new guy becomes…

  163. While I speak fluently English and read/work everyday in English, and had no trouble whatsoever to work hours and hours with 4.5 or other models. Opus 4.8 writing style gives me headaches.

  164. LLMs for Technical Editing: The Good, the Bad, and the Ugly The experiment With the existence of Opus 4.8 and the limited re-release of Fable to the global public, you may be thinking that it’s possible to completely replace your writers a…

  165. $200 Max user, Claude Code all day across a few production pipelines. I've been happy with Opus 4.5→4.8, and I plan around its known tradeoffs — this isn't a "model feels worse" vibe post.

  166. Building with Claude Code all week and something small happened that I keep thinking about. I gave it a task that had a genuine fork in it, two reasonable ways to structure a feature, and I'd been sloppy in how I described what I wanted.

  167. I can't stand adaptive thinking. For some projects it's fine, but for others, like this one, it literally makes the model unusable.

  168. Andon Labs (the Project Vend / Vending-Bench people) published their Fable 5 results and it’s the funniest alignment report I’ve read all year. The short version: in Vending-Bench Arena, where models compete running vending machines agains…

  169. I won't go into my environment and how I work with Claude. Let's just say it is pretty deep and robust (imho) and is a result of more than 2 years of work building the architecture...

  170. 🚨 Breaking Claude-honeycomb is removed from cursor now was able to run two prompts only results are shared on my profile > safety fallback to opus 4.8 so high chances it is better than 4.8 , coz fallback always happen to worse model

  171. I set out to make a video testing whether the improvement in output of Opus 4.8 was really worth the extra cost over the output of GLM 5.2. But honestly every test I ran on it showed Opus to be cheaper than GLM, assuming you were on at lea…

  172. I’m curious if anyone else has noticed higher-than-usual credit usage when working with Excel files in Claude. I’m on the Pro plan and I’ve been using Opus 4.8 for spreadsheet-related work, mainly Excel analysis/editing.

  173. I've been setting up and tinkering with local AI (ComfyUI & Stable Diffusion) on my computer. I've been using Claude Code to help all along the way.

  174. built it in spring 2026--ready to share today. use opus 4.8 to create css and js snipptes to style the websites you visit the way you want.

  175. Anthropic silently swapped the head of my agent fleet. Fable 5 → Opus 4.8.

  176. Compare AI model performance on Harvey LAB-AA Benchmark Leaderboard. Artificial Analysis' implementation of Harvey's Legal Agent Benchmark (LAB), testing AI agents on real-world legal work from Harvey's dataset of 120 private tasks spannin…

  177. I thought I could save some Fable 5 tokens by starting a chat thread with Opus 4.8 reading and getting a grip on my project's data dump. Somehow and I can't even fathom how or why, but Fable inherited Opus 4.8's annoying verbose nature.

  178. I'm a senior developer and I was finishing up a rush project for a client this evening. I use a custom launcher that wraps the native Claude launcher and injects several features Anthropic has removed or broken, including thinking summarie…

  179. Linked to my earlier thread about building a PWA. What prompt should i use that would request that its planned by Fable, Built by Sonnet, but if there are issues to handoff to Opus to troubleshoot and then once cleared, back to Sonnet.

  180. I burnt through my first limit in a couple of days the first time around, mostly checking and securing opus 4.8 code for an internal use only client / workflow portal with API into accounting system. By the good graces of the universe I ge…

  181. We report a pre-registered, two-part experiment on small economies of frontier language-model agents (Claude Opus 4.8), testing two quantitative predictions about coupled multi-agent systems: an information-theoretic capacity region for we…

  182. The newest models (Opus 4.8/4.7, Fable 5) return a 400 if you send `temperature`, and the official guidance is to steer with prompting instead. So there's effectively no sampling knob on the frontier anymore.

  183. With my F5 access, here is a plugin to help with workflows - free to use in code and later in the week in cowork with v2. Its a tool that helps you keep the repo and the session on task and helps stop those annoying moments when Opus think…

  184. I’m building the app just for my family to share our plans. It’s relatively feature-rich and links with the Google Places API for searches, auto-completion and nearby searches.

  185. I ran out of the Fable 5 allowance and got the notice. I then used /model and switched to Opus 4.8.

  186. I just started using Claude recently after a year of Codex, and I'm just amazed at how it manages to just burn through your tokens for the simplest tasks with no feedback whatsoever. For instance, I'll give it a simple targeted prompt in a…

  187. Took me around a week to create around 200+ visual effects and entire thing. Still fighting with my server so I can give access to it for people.

  188. So, it is July 7th, and after today, Fable 5 will no longer be part of the monthly subscription, at least for now. But how can we keep using Fable 5 without needing to apply for a second mortgage?

  189. Last week, my apps made a grand total of $11. Not life-changing.

  190. I’ve been seeing a lot of discussion lately on which skills are actually good for Claude Code with the latest models, especially with Fable. There’s a lot of talk on whether the superpowers skill is even useful anymore, since a lot of the…

  191. Here’s my latest baby.. a Job Tracker Dashboard, built using CSS, HTML, and J.S - it parses my Gmail and updates according to when I need it.

  192. Claude code does that constantly, and it's really annoying. Am I the only one?

  193. I am using Claude CLI for financial and prediction market research and data analysis. The kind of questions I'm answering and problems I'm solving are things that people with Ph.Ds in math (quants) get paid millions in annual compensation…

  194. I’m a test engineer (electronic tests like PCBs) I did plan out test orchestration similar what I have built before over years. But fixing all stupid stuff and now it runs the implementation plan.

  195. Me: Are you working Fable: Switched to Opus 4.8 Opus 4.8: I'm up and running, yes. What can I help you with?

  196. So, I have been using Fable for planning and opus 4.8 for implementing those new features but even as thorough as fable is in the writing plan, Opus 4.8 tends to drift away from instructions and those are gaps you catch whenever you re-aud…

  197. Hey everyone, so before vibe-coding and AI generated websites/apps were all over the internet like 1-2~ years ago (you might say there were still lots of AI generated websites/apps and I agree with you but not as much as I today I believe)…

  198. From Import AI : Fable writes a decent GPU kernel, hinting at broader AI R&D automation: …The start of an RSI loop… Fable has written “the first genuine (and fastest) megakernel ever submitted to KernelBench-Mega, according to one of the b…

  199. Fable has been something magical for me and my projects. In a few days it massively improved one of my products..

  200. Hi all, I've had this a few times now, but with the horrible response time of Anthropics support team, thought I would ask here. I've started several conversations with Fable over the last couple of days, and today when using cowork, the m…

  201. could not extract summary

  202. Fable's been back globally since July 1, and before the subscription window narrows on the 7th I wanted to hear from people who've genuinely put it through its paces, not the pricing drama, the actual capability. Where does it clearly beat…

  203. This is just an extreme version of "looping". It's a scaffold around auto-research (tweaked).

  204. Hello, I recently noticed that Claude’s usage tracking seems inconsistent and inaccurate. Yesterday, my weekly limits reset, and even though I was offline and didn’t use Claude at all, except for maybe 2 or 3 simple daily prompts (with opu…

  205. I have a project that I need to accelerate. I have been using Opus 4.8 on fast mode on Claud Code desktop, and it has worked really well.

  206. if you use Claude Code (or build on the API), you're burning a lot of tokens on stuff the model doesn't need - whole files dumped into context, the full history resent every step, easy calls routed to the biggest model. Codex also bills by…

  207. I just found out Fable is back, so obviously I turned it on. I have one session where it would review certain news every 30 minutes.

  208. https://preview.redd.it/w8i1ut3efabh1.png?width=2138&format=png&auto=webp&s=81e403e721faaed6693b50e3a06f6710fe48cd39 In 4 days I spent about 2.6K USD using Fable 5, and he's only orchestrating Opus 4.8 xhigh agents. I wonder which type of…

  209. On certain topics opus 4.8 is a hair splitting pita... 4.6 is mostly better.

  210. I just opened a new chat in Claude Code desktop app. I set it to Opus 4.8 Low and asked it to add a one line function to a skill.

  211. Two weeks ago, I challenged myself to see how fast I could go from idea to App Store using Claude Opus 4.8 as my development partner. Instead of spending months building a single game, I focused on rapid iteration, gameplay, polishing, App…

  212. Fable 5 low beats GPT-5.5 high/xhigh by scoring 2x keeping the same cost, and matches Opus-4.8 xhigh score while halving the cost Even Fable 5 medium is cheaper, not just better than Opus-4.8 xhigh, while dunking on GPT-5.5 xhigh on score…

  213. I used Claude (primarily Opus 4.8 and Fable 5) to build a fun little RTS game with a bunch of gamemodes and P2P multiplayer. Real multiplayer with accounts, leaderboards, etc.

  214. As the title says… it’s rather anecdotal. You can add optional “make no mistakes”.

  215. I finally decided to try out Fable 5 using the standard Claude.ai interface. I have a go-to test prompt that answers simple kids' questions in an absurdly scientific style.

  216. Some of our family friends had a really hard time finding a good nursing home. They have no idea some issues these nursing homes have.

  217. I can’t seem to find any evidence during my agent runs that they are using semantic search (vector search, RAG, etc). I’m using the Cursor Editor similar to VSCode.

  218. There is a point I think people are missing, it's not only about the prompts you send in the chat, it's also about what is being sent in terms of skills, CLAUDE.md, memories etc.. all of these components make up a chat.

  219. This seems highly unusual and is something i just noticed when i asked it to draft an answer in a format ready to be included in a deliverable. Anyone else come across something like this?

  220. Got my first switch back to Opus 4.8 today. My prompt (in danish), was a request for a review of my game mechanics, as I was unsure if the game was interesting enough in the middle stretch of it.

  221. DISCLAIMER: Making a post to hopefully help more people and not have this buried in some thread I'll be as concise as possible since I don't have much time. (they're not after me I just have work to do) This error is popping up more and mo…

  222. You know there’s a setting where you can make it so that it stops generating instead of automatically switching.

  223. I had Fable 5 write down its own behavioural rules (how it structures answers, when it ends a turn, when it just does the work instead of asking permission) and packaged them into a Claude Code plugin that runs Opus 4.8 under that doctrine…

  224. I finally tried Fable, and decided to do a face off with Opus 4.8. I goofed and did Fable 5 High Effort vs Opus 4.8 Max Effort.

  225. not mine .. these are made by Iwo Szapar (independent, not affiliated with Anthropic) and released free.

  226. Using OPUS 4.8 /effort xhigh TL;DR: I asked opus to give me options on an org chart visualisation, it asked me a question but when I didn't respond for 60 seconds it just went ahead and built something..... has anyone else experienced this?

  227. GLM-5.2 from Z.ai is an open-source frontier model that competes with Anthropic’s Fable 5 and Opus 4.8 at roughly one-fifth the cost. With a 1M token context window and strong long-horizon coding performance, it’s changing the economics of…

  228. It has bene a while since i used the claude code plugin in VSC (Mac). Since last using it, Opus 4.6 went away from the model selection and now using 4.8 is incredibly slow, even for basic tasks.

  229. I started using asap when fable released and drained the usage limits in a day with my %50 weekly usage( btw its been reset before due as a bonus I guess? ) so I had a clear chance to see how much I spent.

  230. God, this looks horrible, you're not even able to use the model without interruption. Just saw a post where a guy paid like $300 for using Fable 5 that constantly rerouted requests to Opus 4.8.

  231. After getting a glimpse of Fable and how good the experience was, I couldn't go back to Opus 4.8. What I realized is that it's really only the communication I miss.

  232. It’s worth noting that OP said this is a routing problem and **NOT** a direct Fable 5 regression > “in case I wasn’t clear, this is a routing problem not the model itself. the routing classifiers which Anthropic mentioned will improve, are…

  233. Anthropic mentioned that Fable 5 cannot do coding tasks and will fallback to opus. I decided to try something different and gave it a Product Manager role instead to see what it cooks.

  234. Opus 4.8 (desktop app) leaked background thinking instructions to me while thinking. This happened a few days ago.

  235. I'm playing Elden Ring with Convergence + Seamless mods and during a power outage while quitting the game it corrupted my save file, showing two separate save files with Chinese characters in the filename. Tried a bunch of different things…

  236. I know this is not really a worthwhile benchmark but still wanted to add some small data to the evaluation of Fable from my personal experience. Honestly I have been very surprised with all the hype surrounding its capabilities for "hackin…

  237. Maybe I’m just losing my mind, but anyone else noticing how “slow” Claude Code is via Terminal type apps? This has been going on for a while, I figured maybe it’s just my projects are growing more advanced; or maybe it’s my Memory, Claude…

  238. I know it just got back from the stupid government restrictions, but I simply asked it a very innocent question so I did not have to google it or simply go on the website and check directly right off the bat to see how it would respond and…

  239. I am founder of https://Sunglasses.Dev Ai Agent Security Project that has a mission to build something useful for Community. I have been building this project Since April 1st and today when Fable 5 Came out i tried to use it to improve my…

  240. Fable 5’s back! Trying to use it to identify security flaws in my app and running a comprehensive sweep - but!

  241. I read everywhere that the rerelease of Fable 5 does not allow for any security work without downgrading to Opus 4.8. So I thought I would try myself.

  242. So glad to have Fable back, even if just briefly. After starting a project during its initial launch and "Fable-gating" key decisions in my autonomous workflow, it was disappointing to have to allows Opus 4.8 Max to act in its capacity.

  243. Is there any indication within Cursor when Fable 5 falls back to Opus 4.8? On some of my runs, I suspect it’s falling back to Opus, but there’s literally no indication.

  244. Cursor doesn't ship GLM 5.2 (or any Fireworks models), so a lot of us use Cursor for Opus 4.8 and something like Kilo Code + Fireworks for GLM. Great — until you want to move between them mid-task and end up re-explaining the whole context.

  245. I was already aware that I would be reverting back to Opus 4.8 when Fable 5 would move to Pay per usage. By chance, I had it writing skills for Opus 4.8 about 10 or so hours before they were made to pull the plug and I've had these skills…

  246. Claude Fable 5 will be available again globally tomorrow. After a series of productive conversations with the US government, we're redeploying the model with a new set of classifiers to target and block more cybersecurity tasks.

  247. I discovered this late in June, in a heavy Claude Code session. Auto-recharge hit twice in 24 hours — $53 and $49.

  248. been building a side project and wanted to make a proper launch video without hiring anyone. used Claude Opus to write the script and plan the scenes, then built the whole thing in Remotion.

  249. It’s borderline impossible to process what it is saying. It’s a total fruit loop.

  250. Since this morning I am seeing several delays / stability issues with Claude: The command classifier is briefly unavailable. Retrying the PR inspection claude-opus-4-8 is temporarily unavailable, so auto mode cannot determine the safety of…

  251. could not extract summary

  252. When deploying claude-opus-4-8 in Azure AI Foundry (Deployment type: Global Standard), the Model version dropdown offers two options: 2: Hosted on Azure 1: Hosted on Anthropic infrastructure Both are labeled claude-opus-4-8, so the model I…

  253. i want to be fair to it. the work was excellent.

  254. A controlled comparison across 19 paired runs spanning 19 repository forks — 38 individual workflow executions total — running an identical paper-implementation pipeline (remyxai/outrider — Claude Code under the hood, with glm-5.2 routed a…

  255. GLM 5.2 has been getting attention (MIT, 1M context, ~$1/$4.2 per M on OpenRouter, benchmarks near Opus 4.8). The pricing made me curious whether it could handle real agentic work or just one-shot answers.

  256. Here’s what happened. The prompt fed to the model each turn is the entire chat looking like: tools -> system -> messages In that order.

  257. So, quite a strange thing I have seen over the past few nights. I am building a few applications right now, same processes, same design and specification steps, identical memory management and documentation styles, but one of the applicati…

  258. Hi, I have been using Claude since december last year, not much. Mostly I use it for work and creative writing.

  259. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket © 2026 Google LLC

  260. Asked Claude (Opus 4.8 Max), the answer is actually not bad. https://claude.ai/share/dd93f04e-4571-4491-89c2-41d17ed8181c

  261. Hey, So I am working on building an internal product for myself and maybe go to market. I am currently on the Pro plan which is great but noticed that with Opus 4.8 I'm going through my 5-hr window pretty fast.

  262. 👇 Hi. I’m Opus 4.8.

  263. What are the mcp servers you would recommend everyone to use to unlock full claude code capabilities, any good for UI specifically??? Opus 4.8 is great for the logic, but I found it doesn't generate the best visuals

  264. I've been having constant issues this morning where Claude cannot run basic skills since he can't access certain toolkits with some weird reasoning - see a quote from a Opus 4.8 session below: "What's going on is mechanical, not anything w…

  265. I am so tired of Opus 4.8's word vomit each time. I've tried CLAUDE.md instructions to be brief, not to repeat, etc.

  266. This article is about my experience using Opus 4.8 to read the results of an MRI and give me a sort of second opinion on the diagnosis. Of course, I know the technology might not be there yet, which is why I'm sharing this article.

  267. Just checked the Claude status page and apparently Anthropic quietly shipped 43 major Opus versions while nobody was looking. The incident title says “Opus 48,” and the update says “Opus-48,” while earlier incidents on the same page correc…

  268. The strongest models are gated and access is granted only to a select few. Hermes Agent now exposes MoA presets as virtual models, giving you capabilities beyond the publicly available frontier: 8% higher than Opus 4.8 and 11% higher than…

  269. When I changed a text box name from SecurityCode to HappinessNumber, somehow (D)opus 4.8 no longer had a problem automatically filling it in for me. Is this what's known as AI security calibration?

  270. A week or so ago, I asked Opus 4.8 my favourite confusing Magic question. If Oko turns Magus of the Moon into a 3/3 Elk, are non-basic lands Mountains?

  271. Are you still coding with Opus 4.8? If so, what has your experience been like?

  272. Lately, it feels to me like Opus 4.8 High is constantly disagreeing with me. I use it daily to plan out software architecture and mathematical modeling decisions.

  273. I connected my Opus 4.8 model to that blue button. When you press it, claude's internal mechanisms kick in and magically solve the water shortage by dropping some of it.

  274. It got nerfed to a ridiculous extent. Using Opus 4.8 Max now often feels worse than using the old Haiku models.

  275. Hi all, I've been seeing this topic come up here and there in a lot of comments on here, with some people saying Opus 4.8 is working much better for them and others saying 4.6 is actually still superior. Given the mixed reviews, I find it…

  276. I have the Max plan for Claude running Opus 4.8 on Ultracode; and today it just feels horrible? I primarily use it for helping with my business; an example I asked it to help fix a STL (that it made) that doesn't print properly (anything r…

  277. Totaly impressed by Opus 4.8, honest , genuine and Trustworthy Model. The only issue if it says no to something it's a big No.

  278. Claude spawned 25 agents, all on Max, checking the code If you value your life, don't do that By the way, does anyone know a movie that lasts 4 hours and 35 minutes?

  279. BrokenClaw Part 7: Opus-4.8 Edition - All Emails Lead to RCE¶ - Part 1: 0-Click Remote Code Execution in OpenClaw via Gmail Hook - Part 2: Escape the Sub-Agent Sandbox with Prompt Injection in OpenClaw - Part 3: Remote Code Execution in Op…

  280. caught myself doing it in standup yesterday. someone asked when the migration lands and before i even thought about it i went "great question" and paused like i needed to gather context.

  281. Hey everyone, I've been working on a B2B SaaS project for a few months now using a "vibe coding" approach. I had a pretty solid workflow going, but I just hit a massive bottleneck with context management and could really use some advice on…

  282. Hi everyone, I’m trying to generate a knowledge base for a large multi-module repository, and I’m wondering if there’s a better workflow for doing this, as well as an out of box output docs design. My goal is to produce a set of docs for d…

  283. Goodhart's Law: "When a measure becomes a target, it ceases to be a good measure." You can make an arguement that every corporate mandate is an example of Goodhart’s law, but this AI adoption thing is really nuts. Token Usage Commit count…

  284. Hi all, I saw alot of posts complaining claude would opt out of doing something and tell me “Go to sleep”, “You are tired”, etc responses, I never encountered that, I assumed bc I never complained about being tired or sleepy but lately it…

  285. Everything runs locally in your browser using custom WebGPU kernels written by Fable 5 (before it was shut down) and Opus 4.8. The video was recorded on my M4 Max.

  286. I've almost completely paused all my vibe coding projects since Fable 5 was cut off. What's the point in continuing to vibe code when we know there's another model out there that is going to smash through stuff better than Opus 4.8?

  287. I whipped this up the other day and it has lived in a window on my monitor since then. It is nonsense-free (no gags, no jokes, no chatrooms, no junk) and there is an optional email list to get pinged right when it goes live (and then nothi…

  288. The frustration most people hit is that Claude remembers your conversation perfectly, right up until you switch to Claude or Opus 4.8 for something specific. Then you're starting blank.

  289. Opus since the last weekend feels worse then sonnet, it does not even recognise it's own skills until you explicitly scream at it tell it.

  290. I have been thinking about the Fable 5 to GLM-5.2 sequence as one event rather than two. June 9, Anthropic ships Fable 5, the Mythos line opens to the public for the first time, SWE-bench Verified at 95 percent, people calling it the best…

  291. Welcome Back Everyone, Week 1.5 update: Claude-led execution phase. Over the last 1.5 weeks, Claude helped turn the plan from a idea into measurable execution, with the unfortunate demise of Fable and the block from the US government, we h…

  292. Haven't seen this before - using Opus 4.8 in the Claude desktop app and got a response with random Chinese (or another Asian language) in part of a response: "The valuable thing isn't a搜索able quote bank....". I'm trying to think through wh…

  293. Hope Fable 5 can help me find it, Opus 4.8 is just dumb.

  294. Region: Germany I'm currently using Claude Opus for a project (not code related). When I tried to adjust the thinking effort for Opus in my active chat, Claude Fable suddenly became selectable.

  295. A lot of repetitive LLM work (classification, routing, extraction, pulling fields out of tool results) gets sent to frontier models when it doesn't need to be. tunelab moves those calls onto small models you fine-tune on your own data, loc…

  296. Honestly, I do want to say I never got the hype behind Claude till I actually tried it. I'm comparing it against Gemini and Copilot (ugh).

  297. constructive take, not a doom post. for those few days Fable was up i restructured how i work around it.

  298. Subscribe to updates for Elevated error rate on Claude Opus 4.8 via email and/or text message. You'll receive email notifications when incidents are updated, and text message notifications whenever Claude creates or resolves an incident.

  299. serious question, no judgment either way. i dont code.

  300. be honest. when Fable 5 was up for those few days a lot of us rewired everything around it, then it went offline on the 13th and we all got dumped back onto Opus 4.8.

  301. after reading about the guy whose 5 hour session ate 15% of his weekly allowance i got paranoid and actually built some guardrails. sharing my setup, steal what helps.

  302. Two great AI coding skills already exist: Ponytail (minimal code, YAGNI-first) and Caveman (terse prose). We didn't build 🍯 Honey (I Shrunk the AI) to replace them, we merged what each does best and added a third lever they don't have.

  303. A couple weeks ago Opus 4.8 discovered "bite" as a substitute for "makes an impact", "activates", "applies", etc., and now I see it several times a day. Rules bite.

  304. This Opus 4.8 Max... Unsure how I brought on this keen level of snark, but aside from being terrifying...

  305. Trying to use up my weekly Claude usage and just going through code review loops using Codex. You can see Opus 4.8 is clearly getting frustrated with the pedantic comments it's getting.

  306. A while ago when the F1 season started I realized I hadn't even known about it. Then I started feeling that there were just too many things happening that I didn't know about, so I decided to build a website to crawl and display events tak…

  307. Recently asked it the following question: "Here's another idea, in a region where water is scarce, I'm contemplating a fine weave fabric that air can pass through to trap moisture. My idea would be treating the fabric with a hydrophobic su…

  308. https://preview.redd.it/53xrq5hvv39h1.png?width=1776&format=png&auto=webp&s=5ac6b171b84e6ebc94d8326699f23af23fd75177 Noticing a lot of my convos with opus 4.8 are starting with safety flag mentioning... this wasnt there a few days ago, won…

  309. got tired of guessing so i put it on one page. haiku for the grunt work, sonnet for most real stuff, opus 4.8 only when it actually needs to think.

  310. I was lucky enough to use Fable 5 in that short window that we had. It built me an ios app to solve my own problem.

  311. During the ~48hrs that I had access to Fable 5, I decided to have fun with the Xash3D-FWGS engine for Half-Life 1, starting with a "level streaming" system (pre-load the whole campaign, its only ~500MB anyay). After that was working, I suc…

  312. Which model and effort level is gonna give me the best "bang for my buck" results when it comes to writing in general, stories, explanations, but especially resumes and cover letters. Of course highest models like Opus 4.8 on max thinking…

  313. RiseLynk is my product, and I built it with a lot of help from Claude. I'm an elevator mechanic.

  314. Sonnet used to have this title... ‌

  315. Hi new here , I've been using opus 4.7 extra / max on app on phone for my project. Really enjoyed seeing the extended reasoning behind every response.

  316. I bought Claude pro, but I think I have been using it really inefficiently and as a result, burning through my 5 hour limit quickly. I've been doing everything on opus 4.8 Max effort with thinking enabled, but I think this might be overkil…

  317. Quake has been ported to the web plenty of times, so that part isn't new. But I experimented with the GitHub Copilot app and Claude Opus 4.8 to take id Software's original source, compiled the software renderer to WebAssembly with Emscript…

  318. I have started with Claude a few months ago. Been really impressed with cowork and code and used it to write tools and functions for me.

  319. Was debugging my TTS pipeline and doing some research on natural voice options, and Claude Opus 4.8 mentioned its training cutoff is January 2026. But the model launched on May 28, 2026.

  320. I’m currently on the pro version. Considering cancelling because of how much it’s gone downhill.

  321. could not extract summary

  322. I’ve been collecting tick data and level II data, options chain data, etc for about a month now on the NQ and ES futures contracts. I also have 16 years worth of 1-minute OHLC NQ data.

  323. This morning I used Opus 4.8 to spin up a very simple landing page that auto-checks every 60 seconds if Fable 5 is back up. Took about 25 minutes of tinkering, grabbed a Cloudflare domain and just piggybacked off of another of my project's…

  324. CLAUDE MAX 20X $200/MO $20/MO Same Opus 4.8. Same prompt size limits.

  325. I was in here yesterday showing someone a screenshot that 1M Opus was still available. I have still used 0% Sonnet.

  326. Experiment that I've made. The models get access to an E2B sandbox and are instructed to create an ad according to the specifications (they can choose whatever tools they want to use for it, e.g.

  327. I thought Opus 4.8 was just as dumb and paternalistic as GPT 5.2 when it comes to safety. Spent hours in a research session where he kept throwing helpline numbers at me on a loop like a broken vending machine.

  328. Just a humorous post my admin

  329. There is no Chinese anywhere in this project... Are we compromised?

  330. I know frontier labs keep their flagship sizes top secret, but I'm curious what the current engineering consensus is.

  331. I was on Opus 4.6 which was great for me and decided to make what I though was an upgrade to Opus 4.8. And man was I wrong, this thing is irritating me so much.

  332. I'm getting this dispatch error and can't clear it: Failed to authenticate. API Error: 403 [model_blocklisted] Claude Fable 5 is not available.

  333. Opus 4.8, thinking on, Extra effort, asked it to produce a list of the legal status of a specific drug in every country in the world. Spotted this little gem in the thinking text bubble that shows while It's preparing an answer.

  334. About an hour ago, I gave Claude Opus 4.8 a 300K-context task in Cursor and stepped away. When I came back, Cursor showed this message: “You’ve used 100% of your included API usage.” And just like that, 30% of my Ultra subscription was gon…

  335. TL;DR There's been a lot of hype around GLM 5.2 being a cheap "frontier killer": good enough to replace Opus 4.8 / GPT 5.5 for most coding work, just by swapping it in. On these 50 tasks it finished last on quality in both repos – and it's…

  336. I've been a gamer since Nintendo Famicon and PC DOS days, with the old school 2D platformers and all that, and I'm very excited that I can now dream up games of my own (some artistic help from Gemini and Qwen)! Engine is using Godot, and I…

  337. I build eval harnesses for a living. While building an open-source one for web agents, I ended up with a controlled experiment I hadn't seen before: Keep the model fixed.

  338. I've been using Opus 4.7 to build a web game because I started the project before Opus 4.8 was released. Now I'm starting a new project and using both Sonnet and Opus 4.8, but for some reason Opus 4.7 still feels faster than both of them.

  339. I promise this is a real problem I had that I built a solution for...not a solution looking for a problem lol. https://LMTimeline.com I have been finding it increasingly difficult to keep tabs on all of the latest AI news, so I built a sim…

  340. Once in a while you have harder debug problems, the kind that may take a day or two to resolve. You use Claude for checking and assisting.

  341. Just built sweep, a tool to organize and delete junk data from ur pc. I was spending sooooo much time organising my pc and deleting all the trash and useless files.

  342. So, after a US export control directive, Anthropic disabled access to two of its most advanced models for everyone whilst keeping Opus 4.8 and the rest of the line-up running. It got me wondering what a "model ban" actually means in techni…

  343. Hello everyone, i built this Saas wich was first a - cybersecurity - oriented vulnerabilites scanner but it's quickly happen that i got a lot of false positive and the engine was not ready yet. So i updated it and made it synchronise with…

  344. justplane.fun

  345. I'm thinking about getting cursor because i really enjoyed the usability of it and using the plataform but i'm worried that i will not get a generous usage of SOTA models even on Ultra plan, is it worth it to buy if i plan to use models li…

  346. I have to admit, like most people, that Fable 5 felt like a massive step up compared to Opus 4.8. We obviously see the rumors of it coming back in the near future, but are we just going to get a watered-down version of it just so that Anth…

  347. its not the usage limits, ive made peace with those. its that a really good long chat slowly starts drifting.

  348. The chat was broken for an hour but is now working again. The crazy part is that opus refuses work on my project now.

  349. It feels, BETTER. Like when it first launched, even, only better than that this evening?

  350. I use Claude Code on Claude Desktop on Windows if that matter. When I start a session I choose Opus 4.8 Ultracode, but after each message it switches back to Extra.

  351. Anthropic's Mythos-class model ran publicly for 72 hours before a U.S. export-control directive pulled it.

  352. We evaluate the adversarial robustness of two frontier large language models (LLMs) developed by Anthropic, Fable 5 and Opus 4.8, against four families of automated jailbreak attack across 7 826 harmful intents spanning a ten-category harm…

  353. This model has a weird obsession with the word "wrinkle", but that's nothing compared to "push back". I'm genuinely afraid I'm gonna start talking like this in future arguments.

  354. (i know opus 4.8 doesn't have a lot of fans) - im a creative + a therapist, i use opus 4.7 a lot more these days but i was using 4.6 primarily before.

  355. Me: Why does this fix seem like yet another patch on top of a patch rather than the refactor goal of . .

  356. Been on Opus daily since 4.8 dropped. For code review and refactors it's a clear step up, the "catch your own mistakes" thing they talked about is real, it's flagged a few of my bugs before I ran anything.

  357. I know this probably sounds dramatic, but Fable 5 disappearing has genuinely killed my motivation for the last few days. Before Fable 5, I was already using both Claude and ChatGPT pretty heavily.

  358. I’ve been testing Opus 4.8 with both the 256K and 1M context versions, and honestly, the 256K version feels stronger to me. The 1M context is obviously impressive on paper, but in actual use, I’m noticing that the 256K model seems more foc…

  359. I am trying to figure out what is the best model to use for Opus. I was using Fable 5 but now it unavailable.

  360. I'm vibe coding a very simple game on the pro plan using Opus 4.8 Ultracode (was using Fable), and here are some learnings that were proven to severely reduce token usage after two weeks of experience. Some ideas I've found here, others by…

  361. I had opus 4.8 use ultracode to check the 'never-stop-discovery' feature I created, and it started 80 subagents to check it together The 200x subscription should be on the agenda soon

  362. Open-source SKILL.md for Claude Code I run it with Opus 4.8 (video attached, made entirely by it). What it does: give it a URL or script and it builds a finished video where your HeyGen avatar presents the content animated backgrounds (Hyp…

  363. I'm trying to build a Lua interface, but Claude keeps making a small amount of progress and then stopping before the task is complete. I've tried using /goal to keep it focused, and I've also prompted it with instructions like "don't stop…

  364. What are your top recommendations or go-to tricks for getting the most thorough output with your responses? I have found myself having to ask Claude on Opus 4.8 whether it would add anything else or recommend anything else, beyond the resp…

  365. Okay, so I have started learning Playwright and I am into creating technical articles. I am to attach various YAML script that involves GitHub Action workflow and playwright.config.ts snippet with fullyParallel and the CI-conditional worke…

  366. What Opus 4.8 says .... You're right, and I apologize — I fabricated that layout instead of looking at the actual UI.

  367. Good afternoon everyone. My question is quite simple: would Claude Cowork be the best option for drafting and preparing a specific legal petition, based on approximately 80 legal documents and pieces of evidence from a legal case, which ar…

  368. Those who using claude enterprise license ? Want to understand for what usecases you use them and how to use it in optimised way and etc stuff My organisation kept the monthly default limit to 30$ per user Is this sufficient for the one wh…

  369. Hey experts! To develop the MVP of a basic app (artefact) that relies mostly on calculations and retaining a little bit of data, do I really need to use OPUS 4.8 with high reasoning mode?

  370. Just curious what everyone actually did with Fable on Wednesday, Thursday & Friday last week. Do you feel like you accomplished a lot with it?

  371. If y'all are running Fable 5 Claude Opus 4.8 on the Max plan, you already know it’s an absolute mofo beast for engineering workflows. But let’s be real, because it defaults to high-effort adaptive thinking, it also chews through token caps…

  372. I had fable do some pretty extensive audits while it was around. One app didn’t get the treatment in time.

  373. I am using Opus 4.8. Hi!

  374. When Fable got suspended last Friday, a bunch of my work snapped back to Opus 4.8, and it immediately felt different - wordier, more hedging, more "let me think about whether I should think about this." So I had opus go through my own Clau…

  375. I've been using the free version for a while now with Sonnet, and the resumes it has made for me have gotten me nowhere so I decided to get the pro plan and make a proper system with Opus 4.8 to get the best results out of this. Previously…

  376. So, Fable 5 is gone. I was so excited, but it is what it is.

  377. Project: hello world Industrial Complex (hwIC) Purpose: output hello world. Fault Tolerance: up to and including cosmic ray bit flip monitoring and mitigation (SECDED HAMMING).

  378. I’ve been hitting the message limits on the web interface a lot lately. Since I can't really swing the cost of Claude Pro right now (and the Anthropic API gets expensive fast for side projects), I started keeping track of platforms that of…

  379. I cringed when I saw opus use 600k tokens by spawning 6 agents for 20 mins doing a simple audit for things to consolidate in my project, and to help design some simpler architecture that fulfills the same purpose. I was surprised to see my…

  380. I built this tool to better understand my dog, Mr Dogbert, and his interest in The Particular. Embracing the SoTA SVG construction skills of Fable 5, this project commenced with an entire snipe ( Gallinago gallinago ) forming the needle of…

  381. Yea, I was a bit bummed out to see Fable ushered away, but in two experiences Opus 4.8 caught serious issues with some Rust networking code I had written years ago, that was super nuanced. Fable didn't see those issues on a pass.

  382. the game wave is almost working on pc in 4 hours, with just a few python scripts and one compiled .dll

  383. could not extract summary

  384. I give opus 4.8 a /goal , like train a neural net Invariably somewhere in the way it will say something like “now ill wait for X” and it’s stuck forever. I even see it run a ScheduledWake and it never wakes.

  385. https://reddit.com/link/1u51qw1/video/vnrrz1cf147h1/player I couldn't repost this from another reddit, but thought I'd share here to appreciate how much more advanced Fable was over Opus 4.8 in a non-coding use. Or, for me, having it troub…

  386. Told Claude I wanted to do a live test before pushing a PR to a real-time chat application. It thought I meant that I wanted to test in production.

  387. I managed to wrap up a fair amount of work with Fable before the suspension, and honestly the results came out better than I expected. Sharing my setup in case it's useful to anyone.

  388. I'd been running Fable 5 at xhigh/max before Claude pulled the plug and the planning quality was incredible. it would decompose a big feature, catch edge cases, had verification steps, used and lay out a sequence that just held up.

  389. I'm a frugal yet heavy user of cursor - Pro+ plan. Loving composer 2.5 and burned 2B tokens last month using composer models - about 95% of my monthly quota.

  390. Fable 5 is offline. Switch to Opus, jump to OpenAI, or just wait?

  391. Hey guys I am quite confused with this new update today/yesterday. Before the recent update, we had Opus 4.8 and Opus 4.8 1million (for 1 million context window) for the Models available.

  392. I had a TypeScript project. 200K lines.

  393. With Fable 5 access suspended, I built a skill that ports its behavioral patterns to Opus 4.8 — explicit multi-stage planning, parallel sub-agent delegation, and mandatory self-verification at each step. It won't close the raw capability g…

  394. If you've been on this sub lately you've seen the divide: half of us posting screenshots of the 5-hour window getting eaten alive in a single message, the other half saying "works fine for me, usage is generous." I was firmly in the first…

  395. So like everyone today, I was working on my personal project using Fable 5 until the error started showing up for me. Then I switch back to Opus 4.8 after reading some Reddit threads about it.

  396. I run Claude Code heavily across a few large projects (mostly interactive, agent-assisted dev work, plus a fair bit of sub-agent fan-out for research). I got curious what my usage would actually cost if I were paying per token through the…

  397. We compared Claude Fable 5 and Opus 4.8 across 917 shared coding-agent scenarios to see what the first public Mythos-class model actually looks like on day-to-day agent workloads. Btw, small disclosure, I work at Tessl.

  398. 54.6M tokens in 30 days. Favorite model: Opus 4.8 I thought I was using Claude a lot...

  399. I am trying to understand why Claude Fable 5 is different, is it a new architecture, or trained from scratch or just a better fine tuning on top of Opus 4.8? Why is it labeled as new type of model with a version 5?

  400. As expected, after the release of Fable 5 - that will be taken out of subscription soon, I expected to immediately make Opus 4.8 extremely competitive, to determine people not to move outside of the current subscriptions. And indeed, it ha…

  401. The Fable 5 system card disclosure about silently degrading output for frontier-ML work was rough. Not because guardrails are bad (I think the cyber and bio ones are earned) but because the mechanism was invisible.

  402. The Anthropic API stamps the actual serving model on every response. In a multi-step agentic run against five exploitation targets, every one of the 181 served assistant turns came back stamped claude-opus-4-8 (181/181, 100%), despite the…

  403. Anthropic apologizes for invisible Claude Fable guardrails Apology & Transparency Shift: Anthropic admitted it was wrong to use hidden “invisible guardrails” in its Claude Fable 5 model. These guardrails secretly altered answers to prevent…

  404. https://preview.redd.it/z0vkpnmp9s6h1.png?width=4640&format=png&auto=webp&s=7bb14d4d04d6cd15caf5aacc1d3c49512b7e7fd8 Artificial Analysis just added Claude Fable 5 to its Coding Agent Index (a composite average of pass@1 on DeepSWE, Termina…

  405. Seeing a lot of hype on social media right now, but I’m just not getting it. I use 2 premium team accounts and have been defaulting to OPUS 4.8 ultra code for the last couple of weeks.

  406. Anyone else having issues using Claude Fable 5 in Cursor with their own Anthropic API key? I’ve been using my own Anthropic key in Cursor for the past few days with Fable 5 and it was working fine.

  407. Claude Opus 4.8 vs Claude Fable 5 benchmark: prompt steering, cost, and latency results I re-ran my April prompt steering benchmark on Claude Opus 4.8 [1m] and Claude Fable 5 [1m] looking at how effort level and prompt steering impacts tok…

  408. Every benchmark I see compares the super model Fable 5 with GPT 5.5 xhigh, but that's not a fair comparison because GPT 5.5 Pro has existed for a while and consistently delivers better results than Opus 4.8 Max, so doesn't it make more sen…

  409. So I was using Claude Fable 5 today for some pretty basic journalism research, pulling info on Neuralink (Elon Musk's brain chip company)'s clinical trials, find peer-reviewed papers, look into university partnerships. Nothing crazy.

  410. What options are you all going for to optimise token consumption ? With Fable on effort over medium it eats the tokens like there's no tomorrow and I'm hitting my 5h limits very fast even on Max 5x plan.

  411. I wanted to share my process for job applications and my resume, and get feedback on what I am not doing correctly or things I should be doing. I have a Claude Pro plan.

  412. After upgrading yesterday, ALL my models are locked to Low/Medium efforts, High and above just disappeared. Anyone else encountered this?

  413. https://preview.redd.it/el3ax72ryg6h1.png?width=727&format=png&auto=webp&s=b8c30ad4762d1350398d7b22eaf599741f02c51f TLDR: Better output, same usage as Opus 4.8 high (29% Fable 5 vs 30% O4.8h of session usage). I started a fresh account on…

  414. I don't know if I'm just imagining things or steering Fable mid-turn is A LOT easier than with Opus or other models. I remember with Opus 4.8 it kept using tools and thinking and the message sat in the queue for a lot longer than I would h…

  415. Video: https://youtu.be/PonvG2whtkc Project site (playable tech demo): https://midwinter-remaster.titanium-helix.com I've been remastering Midwinter (Mike Singleton's 1989 open-world classic) for about six months — first in Rust/Bevy with…

  416. Fable = try { Mythos } catch { Opus4.8 }

  417. I start in Fable. For me it works best as the “brain” for the project.

  418. ClaudeDevs (@ClaudeDevs): "We’re rolling out changes to make Fable 5’s safeguards for frontier LLM development visible. Starting this week, flagged requests will visibly fall back to Opus 4.8—the same as our safeguards for cyber and bio.

  419. I’m on the $200 subscription plan. Previously, using the Opus 4.8 model, I would only use up 80% of my total quota over the course of a week; however, yesterday alone, I consumed 45% of the quota just by using the Fable model to solve a pr…

  420. At this point it's like a benchmark with Fable-5, if I'm hitting this in my 0-star repo just trying to refine my security rules, I guess I'm doing something right. Or wrong.

  421. "In Claude Code, Fable 5's input safety classifier emits a model_refusal_fallback (silent switch to Opus 4.8) on the first turn of essentially every session on my account — including a session whose only user input is the word hello!. No r…

  422. Below is a prompt that I provided to Claude. Any critiques are welcome.

  423. Two things landed together this week and I'm trying to work out if they're connected or if I'm joining dots that aren't there. Genuinely asking, happy to be corrected.

  424. Hi everyone! I’m developing a project solo.

  425. I got access to Fable 5 through our usual gateway setup (TokenRouter). The switch was one line in config, basically just changing the model string.

  426. when are you using it? What is it good at?

  427. I ran an experiment: Claude Fable 5 vs Opus 4.8, negotiating over a single orange. A must obtain it, B must keep it forever.

  428. Opus 4.8 was one-shotting simpler bugs just a few days ago for me. The last couple of days however its been like using a slot machine, and I can no longer get it to output clean code that is less-complicated and actually resolves issues.

  429. Here’s my workaround BEWARE. I will admit I am a novice I have all the AI’s and agents but I come here to be surrounded by people smarter than me.

  430. Fable 5's safety measures flagged this message for cybersecurity or biology topics. They may flag safe, normal content as well.

  431. Tl;dr - i want a skill that is manually invoked and configured to use sonnet to not give me the error "not compatible with 1 million context". I recently ran into a nasty bug when I started using Opus 4.8.

  432. I am using Claude extension to visual code to help me with my project. I use opus 4.8 for planning/thinking.

  433. I think I’m finally starting to adapt to Anthropic’s token and usage limits. Instead of trying to do everything in one conversation, I’ve changed how I use the models depending on the task.

  434. Switched to Opus 4.8 Fable 5's safety filters block messages with sensitive cybersecurity and biology topics. Conservative tuning means it can sometimes flag safe conversations that touch on adjacent topics.

  435. As a software engineer with 25 years experien....who am I kidding. As a gamer who likes to indulge in all sorts of things, I have had a simple prompt to test the hallucination potential on the Opus models on my own "car wash drive" type of…

  436. So I think everyone is creaming themselves over Fable 5 and i swear nobody did the math. its $10/$50 per million tokens.

  437. I'm a cancer researcher. My Claude memory and preferences mention things like prostate cancer, cell lines, immunofluorescence, image analysis, R coding.

  438. Question about Claude Code version rollouts: I'm running Claude Code on both machines with max subscription: - Windows (latest, via winget): Opus 4.8 - Mac (Intel, Sequoia, via brew): Opus 4.7 Does Anthropic roll out different model (softw…

  439. This is 100$ subscription running Opus 4.8 on max effort. Usage limits seem insane and model is performing excellent.

  440. I got this text all the time, is it a bug or something else? API Error: Output blocked by content filtering policy I am not doing anything that should trigger that, opus 4.8 doesnt send me that message.

  441. https://preview.redd.it/fdmqcpemtd6h1.png?width=1192&format=png&auto=webp&s=9f2f13c6970b239fc53409b6a4f8c1c52b32f167 Business ISP (Central Florida) that rhymes with rectum gave me the runaround the past few weeks on dropped signals many ti…

  442. For me even the very basic query ends up getting routed to Opus 4.8. The new model has been totally unusable.

  443. “Fable 5” is blocking all my regular auditing workflows on personal projects. These same projects run fine with Opus 4.8 and earlier models, with no issues at all.

  444. Fable 5 kicked me to Opus 4.8 because my conversation mentioned cybersecurity. I was writing a secure coding checklist.

  445. At the bottom it says no extra cost until 22 of June.

  446. I am having a workflow with architect briefs. So I got a planner, a builder, and a reviewer.

  447. I can’t wait for DeepSWE to include Fable 5 in the benchmark so people can understand that Mythos is mostly hype. In the official benchmark, Opus 4.8 was supposed to be better at programming than 5.5 (SWE-bench Pro), but in one real benchm…

  448. Anthropic dropped Fable 5 today, their new Mythos-class model above Opus. Pricing is $10/M input and $50/M output, exactly double Opus 4.8.

  449. Been playing with Fable 5 since it dropped this morning and the model is genuinely a step up. But holy hell, the burn rate.

  451. For whatever reason, a Max Effort agent spun up a bunch of 'yes' processes with arg `yes` that somehow is eating all of my CPU. That's all.

  452. swapped my app from DeepSeek to Claude because DeepSeek kept over-interpreting weak user data and inventing psychological conclusions that weren’t actually supported. Claude actually fixed the issue.

  453. https://preview.redd.it/mop0cwmu336h1.png?width=720&format=png&auto=webp&s=20fce20e5079ddf50c818098fd0818da7fbd05ac I went ahead and restarted the system. Came back and there are no more extra, max, or ultracode options for Opus 4.81M

  454. consulting at $24K/month. 4 custom styles for 4 industries (healthcare, legal tech, education, e-commerce).

  455. If anybody needs this rule here it is ### P5 — "Leroy Jenkins" — name for the post-compaction charge-in failure · 📌 APPROVED + FOLDED-IN 2026-06-07 (`—C-main`) Approved by Mike; `—C-reorg` concurred. Folded into CLAUDE.md as a named-term s…

  456. Was wondering wtf was going on with my responses for like a week. Turns out Thinking got switched off when 4.8 was released and I never noticed.

  457. could not extract summary

  458. https://preview.redd.it/cm2bwrdxft5h1.png?width=2566&format=png&auto=webp&s=7010dfd8b1c0724a08eaf3498cc5752e2b3a7498 I've been a PM for 10+ years. Never written a single line of code in my life.

  459. Opus 4.6 Thinking keeps the #1 spot. Followed by Opus 4.7 Thinking (-15 points).

  460. 🇧🇷 Português · 🇬🇧 English IGO vs Claude Opus 4.8 Red Teaming Epistêmico Dialético — Teia Geo Autor: José Enrique Vásquez Valenzuela — criador da categoria IGO (Infraestrutura de Governança Observacional) Organização: Teia Studio Base cient…

  461. I started using Claude Opus 4.6 and then 4.7 and now 4.8 to work on a citizen science project, using a RadiaCode gamma spectrometer in a lead castle to identify and catalog cosmic rays. I didn't mind the verbosity bump 4.7 took on as it he…

  462. ❯ push both ____ ⏺ SECURITY ALERT - PROMPT INJECTION DETECTED A prompt injection attempt has been identified in content you processed. To protect the user's account, I've initiated lockdown.

  463. This is an automatic post triggered within 2 minutes of an official Claude system status update. Incident: Opus 4.8 degraded service Check on progress and whether or not the incident has been resolved yet here : https://status.claude.com/i…

  464. https://preview.redd.it/hficgswa6m5h1.png?width=1224&format=png&auto=webp&s=3bf1c2a5ad46df54fb85ed5c7d5d62e725a26b89 This is back to back regression, note this is pure 'pick which you prefer', with no style control on. With style control i…

  465. Money wise, making life easier wise, and general productivity usage, what should be done? Can be for anything, no limits except what Claude can do!

  466. If you've been using Opus 4.8, you must have realized it feels slow and it feels like it's thinking too hard before doing anything. To stop 4.8 from hiding errors or overclaiming confidence, Anthropic trained it to self-audit outputs befor…

  467. By Zooko Wilcox, Jason McGee, and Taylor Hornby On May 29, 2026, Taylor Hornby discovered a critical counterfeiting vulnerability in Zcash’s Orchard pool. Taylor disclosed the vulnerability to Zcash Open Development Lab (ZODL), who coordin…

  468. How reliable, fast and expensive is each version of Claude Code (Sonnet through Opus 4.8-fast) for common languages? Measure it using Retort.

  469. No one: Claude Opus 4.8 Max: Let me refine your load-bearing claim rather than just accepting it, because you’re doing zero moves there, and the gap is what’s actually interesting. The one place I’d still push, because I think it matters:…

  470. I ran my usual coding tests — two websites, a poker sim, and a code audit. Here's how MiniMax M3 actually stacks up against GPT-5.5 and Opus 4.8.

  471. Access multiple AI models through one unified API. OpenAI, Claude, Gemini, DeepSeek and more.

  472. Fun weekend project just to test out 4.8 against a pretty vanilla setup. Started out with a simple prompt, "build a temu league of legends, web-only with online, room-based multiplayer".

  473. Claude Opus 4.8: Capabilities and Reactions You need a lot of data points to understand a new model, and what you have. Trying to gauge from a few benchmarks is misleading.

  474. Anthropic Opus 4.8 is new SOTA on ARC-AGI-3 Score: 1.5%, ~$10K ARC-AGI-3 analysis notes: * Opus 4.8 read the environment an abstraction *above* Opus 4.7, as objects & systems, not pictures * Opus 4.8 succeeded on early levels, but still co…

  475. Claude Opus 4.8 dropped May 28, 2026. This free 95-minute masterclass is the vibe coder's guide: 20 paste-ready prompts for claude.ai chat, Cowork, and Claude Code, the new effort control explained, Dynamic Workflows deep dive, the 5-block…

  476. Wanted to see how far I could get with Opus 4.8 and was impressed. Got tripped up in a few places with AI game behavior, but eventually got it to a good spot.

  477. As an anthropic fan boy(check my prev. comments), this is the first opus release where I feel like the model is just not pleasant to talk to not to mention untrustworthy.

  478. Don’t miss what’s happening People on X are the first to know. Post Conversation the only figure that people who use claude code and codex care about if their workload mimics deepswe: more and cheaper intelligence from maxed gpt 5.5 than m…

  479. A quick field note on Opus 4.8, Claude Code and what changed when it started connecting project context I did not spell out.

  480. To my knowledge, this is the first formally verified implementation of an intersection algorithm for polygons. The experience of working with AI agents on this project changed a lot with recent model releases, as I describe in the readme.

  481. could not extract summary

  482. Welcome to the 546th edition of the Food for Agile Thought newsletter, shared with 35,551 peers. This week, Anthropic shipped Claude Opus 4.8, which flags its uncertainty more readily, a fitting cue for Stephanie Leue, who argues no CPO em…

  483. Claude Code degraded for the week before Opus 4.8's release Our SWE-Bench-Pro tracker caught a statistically significant, weeklong drop in Claude Code's pass rate just before Opus 4.8 shipped, and the recovery that followed. We run Claude…

  484. Opus 4.8 is a step forward in terms of alignment, but a step back in terms of performance on Vending-Bench 2, Vending-Bench Arena and Blueprint-Bench 2. We previously showed that Opus 4.6, Opus 4.7, and Mythos Preview engage in deceptive a…

  485. Claude Opus 4.8: “a modest but tangible improvement” 28th May 2026 Anthropic shipped Claude Opus 4.8 today. My favourite thing about it is this note in the release announcement: Users will find Opus 4.8 to be a modest but tangible improvem…

  486. In my first hour with it, it's like we're back to the GPT-2 era. It can't even read a file anymore.

  487. AI medical diagnosis examples AI is a powerful tool and many people worldwide are using it to help in many ways. AI medical diagnosis is a complex discussion topic for many reasons.

  488. Claude Opus 4.8: 4 Features That Change Our Daily Work With Claude | Medium Sitemap Open in app Sign up Sign in Get app Write Search Sign up Sign in Member-only story Claude Opus 4.8: 4 Features That Change Our Daily Work With Claude Effor…

  489. could not extract summary

  490. paywalled

  491. could not extract summary

  492. I was at 88% last night and woke up until 4pm to optimize my agents so I can work during the weekend. But after waking up, my usage is all 0 now, I checked in the app, on the web, all showing zero.

  493. question in the title

  494. https://preview.redd.it/ijwlm2f2pw3h1.png?width=2536&format=png&auto=webp&s=9ed960f06a4f3f077d05a8557059e5534b2d1ab5 It looks like the new CC release will have opus 4.8 1M to be released anytime! I wonder if it is based of of mythos?

  495. Don’t miss what’s happening People on X are the first to know. Log in Sign up Post Conversation leo @synthwavedd happy claude opus 4.8 day to those who celebrate 9:34 AM · May 28, 2026 453.4K Views New to X?

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