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

**Google** retires **gemini-2.5-flash-preview-09-2025** on **2026-02-17**.
Documented replacement: **gemini-3.6-flash**.

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-preview-09-2025 | Google | 2026-02-17 | gemini-3.6-flash |

Also retiring on 2026-02-17:
- chatgpt-4o-latest (OpenAI) → gpt-5.1-chat-latest
- imagen-4.0-generate-preview-06-06 (Google) → gemini-nano-banana-2.1
- imagen-4.0-ultra-generate-preview-06-06 (Google) → gemini-nano-banana-2.1

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