Anthropic releases Claude Opus 5.5 with 40% cost reduction for typical workloads

Anthropic announced the launch of Claude Opus 5.5 on September 23. The model features improvements in agentic coding, computer use, and knowledge work compared to Opus 5. It offers a 40% reduction in costs for typical workloads and a 30% increase in output speed. The model also shows enhanced natural language capabilities and instruction following, having undergone external evaluations by organizations including METR and Frontier Design.