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AnthropicClaude API
We announced the deprecation of the Claude Sonnet 4 model and the Claude Opus 4 model, with retirement on…
AI summary
Written by AI from the official notes. Check them for exact details.The Claude Sonnet 4 and Claude Opus 4 models are being deprecated and will retire in June 2026.
- Claude Sonnet 4 and Opus 4 models are deprecated.
- Retirement scheduled for June 15, 2026.
- Users should migrate to Claude Sonnet 4.6 and Opus 4.8.
Why it matters: Users of the Claude API should prepare to migrate to newer models to ensure continued service.
Full release notes
- We announced the deprecation of the Claude Sonnet 4 model (
claude-sonnet-4-20250514) and the Claude Opus 4 model (claude-opus-4-20250514), with retirement on the Claude API scheduled for June 15, 2026. We recommend migrating to Claude Sonnet 4.6 and Claude Opus 4.8 respectively. Read more in Model deprecations.