CriticalDeprecation
OpenAI retiring Claude Opus 3 model — migration to Claude Sonnet 4.6 or 4.7 required
Action Required
Failure to migrate away from Claude Opus 3 will result in a complete loss of functionality for applications currently utilizing this model.
AI Impact Summary
OpenAI is retiring the Claude Opus 3 model, a significant shift impacting users reliant on this model for its advanced reasoning capabilities. This deprecation, scheduled for June 15, 2026, necessitates immediate migration to alternative models like Claude Sonnet 4.6 or Claude Opus 4.7 to avoid service disruption. The move also impacts users leveraging the 1M token context window, which is being sunset on April 30, 2026, requiring a transition to the standard 200k token limit or a migration to a supported model.
OpenAI retiring Claude Opus 3 model — migration to Claude Sonnet 4.6 or 4.7 required
Affected Systems
Claude Opus 3
- Date
- 15 Jun 2026
- Change type
- deprecation
- Severity
- critical