Claude

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

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Showing drops for 2026-09-28Clear date

Monday, Sep 28, 2026

1 update · Claude

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Claude

Claude Sonnet 5.5 launch

We just launched Claude Sonnet 5.5, the second model in our Claude 5.5 family. Sonnet 5.5 is a faster, lower-cost complement to Claude Opus 5.5. For more information, see our blog post: Introducing Claude Sonnet 5.5.