AWS has made Anthropic's Claude Sonnet 5 available, positioning it as the most capable model in the Sonnet generation. The release maintains the Sonnet tier's balance of speed and cost while delivering top-tier intelligence for complex tasks. It is optimized for coding across large codebases, agentic tool use with state retention, and professional knowledge work. This update aims to reduce correction rounds and improve first-time success rates for automated workflows.
- Sonnet 5 handles multi-file coding changes and refactoring with fewer correction iterations.
- Agentic workflows benefit from precise tool calling and better error recovery across steps.
- Performance scales for large codebases while keeping costs aligned with previous Sonnet models.
- Ideal for production workloads requiring high reliability in autonomous agent runs.