HighDeprecation
Anthropic retiring Claude Sonnet 4 and Claude Opus 4 — migrate to Sonnet 4.6/Opus 4.6
Action Required
Applications relying on Claude Sonnet 4 or Claude Opus 4 will cease to function correctly after June 15, 2026, without a timely migration to Sonnet 4.6 or Opus 4.6.
AI Impact Summary
Anthropic is deprecating Claude Sonnet 4 and Claude Opus 4 on the Claude API, mandating a migration to Sonnet 4.6 or Opus 4.6 by June 15, 2026. This change impacts any applications currently leveraging these models, necessitating immediate assessment of dependencies and a migration strategy. The newer Sonnet 4.6 and Opus 4.6 models offer improved performance and capabilities, but require code adjustments to ensure continued functionality.
Anthropic retiring Claude Sonnet 4 and Claude Opus 4 — migrate to Sonnet 4.6/Opus 4.6
Affected Systems
Claude Sonnet 4
- Date
- Date not specified
- Change type
- deprecation
- Severity
- high