- The following models are being deprecated and replaced with newer versions:
- Claude models:
claude-4.5-sonnet→ replaced withclaude-5.5-sonnet
- On 10/29/2026, existing configurations will be automatically migrated to the replacement model.
- Claude models:
Detailed Deprecation Guide
Claude Sonnet 4.5 model replacement (10/29/2026)
On 10/29/2026, Retell replaces Claude Sonnet 4.5 (claude-4.5-sonnet) with claude-5.5-sonnet. Existing configurations will be automatically migrated.