Claude

Anthropic's family of products: Chat, Cowork, Code.

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Showing drops for 2026-09-22Clear date

Tuesday, Sep 22, 2026

1 update · Claude

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Claude

Claude Opus 5.5 launch

We just launched Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5. For more information, see our blog post: Introducing Claude Opus 5.5.