Claude Opus 4.7's new tokenizer: 1.47x on English, 1.01x on Chinese

hn · www.claudecodecamp.com ·3 pts·2 replies ↗ ·3h

Anthropic's Claude Opus 4.7 migration guide says the new tokenizer uses "roughly 1.0 to 1.35x as many tokens" as 4.6. I measured 1.47x on technical docs.

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