CriticalDeprecation
Anthropic 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 January 5, 2026, without a migration to a supported model.
AI Impact Summary
Anthropic is retiring the Claude Opus 3 model, marking a significant shift in its model offerings. This deprecation, effective January 5, 2026, necessitates immediate migration to the more capable Claude Opus 4.5 or newer models to avoid service disruptions. Users should prioritize upgrading to ensure continued access to Anthropic's advanced AI capabilities and avoid potential errors.
Anthropic retiring Claude Opus 3 model — migration to Claude Opus 4.5 required
Affected Systems
Claude Opus 3
- Date
- Date not specified
- Change type
- deprecation
- Severity
- critical