### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### The Feature

Adding model retirement tracking on LiteLLM.

- Display model retirement/deprecation dates in a dedicated column or metadata field (e.g. Claude Sonnet 4 - Retires on June 15, 2026). - Surface proactive notifications to admins when a model is nearing retirement. - Support configurable alerts via UI notifications, email, or webhooks. - Allow alert thresholds such as 90/60/30 days before retirement. - Help admins identify deprecated or soon-to-be-retired models currently in use. - Enable easier migration planning to replacement models before cutoff dates. - Optionally mark retired models as deprecated/unsupported in the dashboard. - Provide automated cleanup or disable options for retired models if desired.

### Motivation, pitch

Improve operational reliability by preventing unexpected model shutdowns or API failures due to retired providers and models.

### What part of LiteLLM is this about?

UI Dashboard

### LiteLLM is hiring a founding backend engineer, are you interested in joining us and shipping to all our users?

No

### Twitter / LinkedIn…