Faster and faster locally.
Probably Opus 5 level llms in 3 months at this rate.
Imagine MCP is inside Claude Sonnet 5.5.
Explain like I'm 13? Easy. Sonnet 5.5 is the most agentic Sonnet yet, and a faster, lower-cost complement to Opus 5.5. You use it for everyday stuff. Opus 5.5 orchestrates everything. Sonnet 5.5 takes care of the small, specific tasks.
Anthropic just changed the AI coding game.
Claude Sonnet 5.5 scored 70.6% on Terminal-Bench 4.0, beating Opus 5.5 and Sonnet 5. It can even play Pokémon Red using screenshots alone. 30% faster. Up to 30% cheaper. The future of AI coding is here.
Claude Sonnet 5.5 is out.
30%+ faster than Sonnet 5, up to 30% cheaper for most work, and the same $2/$10 per million tokens. Anthropic's pick for everyday coding and docs. Opus 5.5 stays for the hard stuff.
You have reached the end of the archive
All of Claude Opus 5