AI research and products that put safety at the frontier

AI will have a vast impact on the world. Anthropic is a public benefit corporation dedicated to securing its benefits and mitigating its risks.

:Claude: Fable 5.1 and Mythos 5.1

The world’s most advanced models for coding and knowledge work.

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Latest releases

Introducing Fable 5.1 and Mythos 5.1

Our most advanced models for coding and knowledge work. Their research capabilities also offer an early glimpse of how AI models will contribute to scientific progress.

  • Date
    September 1, 2026
  • Category
    Announcements
  • Details
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Introducing Opus 5

Opus 5 is a step change for the Opus tier: stronger coding, more capable agents, and sharper professional work.

  • Date
    July 24, 2026
  • Category
    Announcements
  • Details
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Introducing Sonnet 5

Our most agentic Sonnet yet, with top tier intelligence for coding and everyday professional work.

  • Date
    June 30, 2026
  • Category
    Announcements
  • Details
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At Anthropic, we build AI to serve humanity’s long-term well-being.

  • Claude Science

    Announcements
  • Core views on AI safety

    Announcements
  • Anthropic’s Responsible Scaling Policy

    Alignment Science
  • Anthropic Academy: Build and Learn with Claude

    Education
  • Anthropic’s Economic Index

    Economic Research
  • Claude’s Constitution

    Announcements