CriticalDeprecation
Anthropic retiring Claude Opus 3 model — migration to Opus 4.7 or Sonnet 4.6 required
Action Required
Applications relying on the Claude Opus 3 model will no longer function after June 15, 2026, necessitating immediate migration to a supported model.
AI Impact Summary
Anthropic is retiring the Claude Opus 3 model, a significant shift impacting users relying on this model for its advanced reasoning capabilities. This deprecation requires immediate migration to the newer Claude Opus 4.7 or Claude Sonnet 4.6 models to avoid service disruptions. The move also introduces changes to pricing and context window limits, necessitating careful planning for applications currently utilizing the 1M token context window.
Anthropic retiring Claude Opus 3 model — migration to Opus 4.7 or Sonnet 4.6 required
Affected Systems
Claude Opus 3
- Date
- 15 Jun 2026
- Change type
- deprecation
- Severity
- critical