Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
In / out price$2.00/$10.00per 1M tokens
Context
1M tokens
Parameters
Undisclosed
Modalities
→
Released
Sep 28, 2026
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