Codex 5.3

1. Cursor Claude Agent is doing weird stuff - rate limiting randomly and using wrong model? (www.reddit.com)

   +32 7w codexcursor

   Getting a rate limit "Upgrade to Ultra for more Cloud Agents: You've reached the limit for your current plan. Upgrade to Ultra to run more Cloud Agents simultaneously." message despite NO agents currently running.

2. You know you have become a "Senior Vibe Coder" when you actually stop and think about which AI model to use for a specific task. (www.reddit.com)

   4 8w sonnetcodexopus

   Junior vibe coder: Throws the entire codebase at whatever frontier model is trending this week and burns their API budget in 4 hours. Senior vibe coder: "I need Codex 5.3 for rapid scaffolding, Sonnet for the Tailwind components, and I'm s…

3. Codex 5.3 is currently a much better model for non-technical builders than Opus. (www.reddit.com)

   +79 8w codexopus

   Opus acts like the brilliant senior engineer who refuses to ask for clarification, builds the wrong feature, and burns your entire weekly budget. Codex 5.3 acts like the collaborative engineer who stops, asks one clarifying question, and t…

4. Possible Codex performance degradation during night hours? (www.reddit.com)

   1 8w codexcursor

   Using Codex 5.3 inside Cursor at night feels like I’ve asked a baby to follow instructions. It keeps forgetting things I told it just a couple of steps earlier, rushes to give an answer without proper planning, and often skips looking at t…

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