CriticalDeprecation
sonar-reasoning model deprecated — migrate to sonar-reasoning-pro immediately
Action Required
Applications using the sonar-reasoning model will fail to function after December 15, 2025, unless migrated to sonar-reasoning-pro.
AI Impact Summary
The deprecation of the sonar-reasoning model represents a critical disruption for applications relying on its reasoning capabilities. Users must immediately migrate to the sonar-reasoning-pro model to avoid service interruption. This change is coupled with Search API enhancements, including new token controls and filtering options, highlighting the need for a comprehensive update strategy.
sonar-reasoning model deprecated — migrate to sonar-reasoning-pro immediately
Affected Systems
sonar-reasoning
- Date
- 1 Dec 2025
- Change type
- deprecation
- Severity
- critical