AI model
claude-sonnet-4-5-20250929 retires on November 30, 2026
- Date
- (UTC)
- Replacement
claude-sonnet-5-5- Provider
- Anthropic
- Last checked
What changes
Deprecated on 2026-09-30. Recommended replacement: claude-sonnet-5-5.
- Deprecated
- Stops working
Source
claude-sonnet-4-5-20250929 | Deprecated | September 30, 2026 | November 30, 2026
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