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Claude is a space to think
We’ve made a choice: Claude will remain ad-free. We explain why advertising incentives are incompatible with a genuinely helpful AI assistant, and how we plan to expand access without compromising user trust.
Introducing Claude Opus 4.5
The best model in the world for coding, agents, and computer use, with meaningful improvements to everyday tasks like slides and spreadsheets. Claude Opus 4.5 delivers frontier performance and dramatically improved token efficiency.
Introducing Claude Sonnet 4.5
Claude Sonnet 4.5 sets new benchmark records in coding, reasoning, and computer use while being Anthropic's most aligned model, accompanied by the release of the Claude Agent SDK for building capable agents
Introducing Claude Haiku 4.5
Claude Haiku 4.5 matches state-of-the-art coding capabilities from months ago while delivering unprecedented speed and cost-efficiency for complex tasks.
News
- Claude is a space to think
- Apple’s Xcode now supports the Claude Agent SDK
- Anthropic partners with Allen Institute and Howard Hughes Medical Institute to accelerate scientific discovery
- ServiceNow chooses Claude to power customer apps and increase internal productivity
- Anthropic partners with the UK Government to bring AI assistance to GOV.UK services
- Claude's new constitution
- Mariano-Florentino Cuéllar appointed to Anthropic’s Long-Term Benefit Trust
- Anthropic and Teach For All launch global AI training initiative for educators
- Anthropic appoints Irina Ghose as Managing Director of India ahead of Bengaluru office opening
- How scientists are using Claude to accelerate research and discovery