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anthropic Claude Release Notes ·

Claude Sonnet 4: 1M token context window in beta

aipreview
feature announcement

Anthropic is rolling out a 1 million token context window for Claude Sonnet 4, a significant expansion of its input processing capacity. This feature is currently in beta and accessible to API organizations in usage tier 4 or those with custom rate limits. Further details are available in the documentation.

  • →1M token context window for Claude Sonnet 4
  • →Beta availability criteria
Features (1) ›
  • 1M token context window for Claude Sonnet 4

    Claude Sonnet 4 now supports a 1 million token context window, significantly increasing the amount of information the model can process at once. This capability is currently available in beta for select API organizations.

Notes (1) ›
  • Beta availability criteria

    Access to the 1M token context window is limited to API organizations in usage tier 4 or those with custom rate limits. Users can consult the documentation for more information on this new feature.

Read the original announcement →

https://support.claude.com/en/articles/12138966-release-notes

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