HighDeprecation
Claude Sonnet 4 and Claude Opus 4 retirement scheduled for June 15, 2026 — migrate to Claude Sonnet 4.6 or Claude Opus 4.6
Action Required
Applications using claude-sonnet-4-20250514 or claude-opus-4-20250514 must switch to the 4.6 variants to avoid disruption after June 15, 2026.
AI Impact Summary
Claude Sonnet 4 (claude-sonnet-4-20250514) and Claude Opus 4 (claude-opus-4-20250514) are scheduled for retirement on June 15, 2026. Migration targets are Claude Sonnet 4.6 and Claude Opus 4.6. Plan to shift production workloads to the 4.6 variants, revalidate prompts and output formats, and update client code to reference the new model names. Conduct non-prod testing to surface compatibility gaps, update monitoring for migration progress, and align SLAs with the new endpoints.
Claude Sonnet 4 and Claude Opus 4 retirement scheduled for June 15, 2026 — migrate to Claude Sonnet 4.6 or Claude Opus 4.6
Affected Systems
claude-sonnet-4-20250514
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high