Model Releases
Anthropic says it fixed Claude’s writing. I ran the evals to check.
Opus 5.5 dropped em dashes from 12.9 per 1,000 words to two in 57,000 words, and cut the rest of the Claudisms in half. Better, but not fixed. The post Anthropic says it fixed Claude’s writing. I ran
Opus 5.5 dropped em dashes from 12.9 per 1,000 words to two in 57,000 words, and cut the rest of the Claudisms in half. Better, but not fixed. The post Anthropic says it fixed Claude’s writing. I ran the evals to check. appeared first on Arize AI.
Related
- Anthropic launches Claude Opus 5, which it says comes close to Fable 5 performance at half the price; it is the new default model on Claude Max (Anthropic)
- Anthropic's Claude Opus 5.5 is now available in Hermes Agent via Nous Portal!
Source: Arize AI | 2026-09-29