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Anthropic · Model listSource update

Substantive changesRecordedObservation date 2026-09-24(day precision)Revision r2

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Summary

The model list has added the Claude Fable 5.1 of API ID, its aliases, the ID of various cloud platforms, and its detailed specifications (context window, output length, pricing), while also deleting the Claude Opus 5 entry of the old version, indicating the expansion of the model family and the structuring of 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).