Anthropic releases Claude Sonnet 5.5 claiming faster output and up to 30% lower per-task costs
Anthropic has released Claude Sonnet 5.5, the second model in its Claude 5.5 family; the company says the model generates output more than 30% faster and reduces per-task costs by up to 30% through more efficient token usage while nearly matching Opus 5.5 on several coding and knowledge-work benchmarks. Sonnet 5.5 is available on AWS, Google Cloud, and Azure as model ID "claude-sonnet-5-5," and Anthropic says it adds new safeguards against cybersecurity risks and distillation attacks — independent verification of the performance and cost claims is pending.