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AnthropicClaude API
We announced the deprecation of the Claude Opus 4.1 model, with retirement on the Claude API scheduled for…
AI summary
Written by AI from the official notes. Check them for exact details.The Claude Opus 4.1 model is being deprecated and will be retired in August 2026.
- Claude Opus 4.1 model will be retired on August 5, 2026.
- Users are recommended to migrate to Claude Opus 4.8.
- Refer to Model deprecations for more details.
Why it matters: Users of the Claude API should prepare to transition to Claude Opus 4.8 to ensure continued access.
Full release notes
- We announced the deprecation of the Claude Opus 4.1 model (
claude-opus-4-1-20250805), with retirement on the Claude API scheduled for August 5, 2026. We recommend migrating to Claude Opus 4.8. Read more in Model deprecations.