CriticalDeprecation
OpenAI retiring Claude Opus 3 model — migration to Claude Opus 4.5 required
Action Required
Applications relying on the Claude Opus 3 model will cease to function after June 15, 2026, necessitating immediate migration planning.
AI Impact Summary
OpenAI is retiring the Claude Opus 3 model, a significant change for users relying on this model. This deprecation impacts applications currently utilizing Opus 3, requiring immediate migration to a supported model like Claude Opus 4.5 to avoid service disruption. The move to Opus 4.5 offers improved performance and a lower cost, but necessitates code adjustments for existing integrations.
OpenAI retiring Claude Opus 3 model — migration to Claude Opus 4.5 required
Affected Systems
Claude Opus 3
- Date
- 15 Jun 2026
- Change type
- deprecation
- Severity
- critical