Claude Sonnet 5.5

Anthropic's Claude Sonnet 5.5 is now available on Amazon Bedrock and Claude Platform on AWS, positioned as a faster, lower-cost model for well-scoped coding and document tasks. It pairs with the recently released Claude Opus 5.5, which handles higher-judgment work.

Anthropic has released Claude Sonnet 5.5, the second model in its Claude 5.5 family, delivering major coding and knowledge-work gains that approach flagship Opus 5.5 performance while using up to 30% fewer tokens per task. Per-token pricing stays unchanged at $2/$10 per million input/output tokens.