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AI summary
Written by AI from the official notes. Check them for exact details.Claude Sonnet 4 now supports a 1M token context window in beta for select API users.
- 1M token context window available for Claude Sonnet 4
- Currently in beta for API organizations
- Accessible to usage tier 4 or with custom rate limits
Why it matters: API users in the specified tiers should consider this for enhanced context handling in applications.
Full release notes
1M token context window
The 1M token context window for Claude Sonnet 4 is currently in beta for API organizations in usage tier 4, or with custom rate limits. See 1M token context window in our docs for more information.