CriticalDeprecation
OpenAI retiring Claude Opus 3 model — migration to Claude Opus 4.5 required
Action Required
Applications currently using Claude Opus 3 will cease to function after June 15, 2026, necessitating immediate migration to a supported model to avoid service disruption.
AI Impact Summary
OpenAI is retiring the Claude Opus 3 model, a significant change for users relying on this model for its advanced intelligence capabilities. This deprecation impacts applications currently utilizing Opus 3, requiring a migration to the newer Claude Opus 4.5 model to avoid service disruption. The move to Opus 4.5 offers improved intelligence and a lower cost, presenting an opportunity for users to upgrade their systems.
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