HighDeprecation
Claude Sonnet 4 and Claude Opus 4 retirement on 2026-06-15 — migrate to 4.6 models
Action Required
Applications calling Claude Sonnet 4 or Claude Opus 4 must migrate to Claude Sonnet 4.6 or Claude Opus 4.6 by 2026-06-15 to avoid service disruption.
AI Impact Summary
Claude Sonnet 4 and Claude Opus 4 are scheduled for retirement on 2026-06-15. Customers must migrate to Claude Sonnet 4.6 or Claude Opus 4.6; continuing to use the older models after the date will result in service disruption as endpoints are retired. Teams should update integration code to target the 4.6 variants, validate performance and compatibility, and plan a rollback if 4.6 introduces behavioral differences.
Claude Sonnet 4 and Claude Opus 4 retirement on 2026-06-15 — migrate to 4.6 models
Affected Systems
Claude Sonnet 4
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high