Introducing Claude Opus 4.5: the best model in the world for coding, agents, and computer use. Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes to how work gets done.

Claude can now use Skills. Skills are packaged instructions that teach Claude your way of working.

Structured outputs are now available on the Claude Developer Platform (API). Available in public beta for Sonnet 4.5 and Opus 4.1. Read more:

Memory is now available for Max users and rolling out to Pro over the next two weeks. With project-scoped memory, each project maintains its own focused context.

Introducing Claude Code on the web. You can now delegate coding tasks to Claude without opening your terminal.