CriticalDeprecation
Anthropic deprecating Claude Haiku 3.5 model by December 2025
Action Required
Applications using Claude Haiku 3.5 will no longer function after December 19, 2025, requiring immediate migration to a supported model.
AI Impact Summary
Anthropic is deprecating the Claude Haiku 3.5 model, effective December 19, 2025. This impacts any applications currently relying on this model, necessitating a migration to Claude Sonnet 4.6 or Claude Opus 4.7. Users should prioritize this migration to avoid service disruption and ensure continued access to Anthropic's most capable models.
Anthropic deprecating Claude Haiku 3.5 model by December 2025
Affected Systems
Claude Haiku 3.5
- Date
- Date not specified
- Change type
- deprecation
- Severity
- critical