# gemini-2.5-flash-lite-preview-09-2025 deprecation — retirement date and replacement

**Google** retires **gemini-2.5-flash-lite-preview-09-2025** on **2026-03-31**.
Documented replacement: **gemini-3.1-flash-lite**.

Source: https://aistudio.google.com/docs/deprecations
Source last checked: 2026-11-08.
Calendar as of 2026-11-08 UTC.

| Model | Provider | Retires | Replacement |
|---|---|---|---|
| gemini-2.5-flash-lite-preview-09-2025 | Google | 2026-03-31 | gemini-3.1-flash-lite |

Also retiring on 2026-03-31:
- labs-devstral-small-2512 (Mistral) → Mistral Medium 3.5

Source: https://llmlatency.dev/migrate/google-gemini-2-5-flash-lite-preview-09-2025