Anthropic releases Opus 5 with ‘close’ to Fable 5’s capabilities

Anthropic has released Claude Opus 5, targeting developers and enterprises with enhanced coding and reasoning efficiency. The new model provides performance close to Claude Fable 5 across various domains while remaining more cost-effective. Featuring prompt-cache-friendly tool changes, Opus 5 delivers near-Fable capabilities at a lower price point. This launch occurs shortly after an OpenAI security incident and Anthropic's recent engagements with the US government, positioning the model as a competitive, high-performance AI solution.