Anthropic retiring Claude Sonnet 4 and Claude Opus 4 — migrate to Sonnet 4.6 and Opus 4.7
Action Required
Applications using Claude Sonnet 4 or Claude Opus 4 will experience errors and require immediate migration to Sonnet 4.6 or Opus 4.7 to maintain functionality.
AI Impact Summary
Anthropic is deprecating Claude Sonnet 4 and Claude Opus 4, impacting any applications relying on these models. The recommended migration path is to Claude Sonnet 4.6 and Claude Opus 4.7, with a final retirement date of June 15, 2026. This change necessitates immediate assessment of dependent services and a migration plan to avoid service disruption.
Affected Systems
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high