Gemini API · Model retirement
gemini-2.5-flash-lite-preview-09-2025
Stopped working
Calls to the model gemini-2.5-flash-lite-preview-09-2025 on Gemini API stopped working on March 31, 2026.
What to use instead of gemini-2.5-flash-lite-preview-09-2025
Move to gemini-3.5-flash-lite. gemini-3.1-flash-lite, named first, stops working on 2027-05-07.
Facts
- API
- Gemini API
generativelanguage.googleapis.com - Model
gemini-2.5-flash-lite-preview-09-2025- Kind
- Model retirement
- Takes effect
- March 31, 2026
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
gemini-2.5-flash-lite-preview-09-2025 on other APIs
- Nano-gpt Deprecated, no date
More from Gemini API
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- imagen-4.0-ultra-generate-preview-06-06 Stopped working
- gemini-3.1-flash-lite-preview Stopped working