← 2026-W40 Weekly archive
SOURCE RECORD · obs_f78cd8ddc0d0…

Anthropic · Model listSource update

Substantive changesRecordedObservation date 2026-09-29(day precision)Revision r2

This record is outside your history allowance. Register for 30 days or choose Plus for all available history.

Sign in / Register · Plus

Summary

Claude Sonnet 5 has been replaced by Claude Sonnet 5.5 in the model list. The ID and aliases of all platforms (Bedrock, API, AWS, Google Cloud, Microsoft Foundry) have been synchronously updated. Meanwhile, knowledge cutoff dates and retirement dates have been added, indicating the new model's release and the adjusted lifecycle information.

LLM generation

LLM The summary is machine-generated; please refer to the original text for important information.

Source page

https://docs.anthropic.com/en/docs/about-claude/models/overview ↗

This link points to the source's official page (not content on this site).