LLM model shutdown · Google
When does gemini-3.1-flash-lite shut down?
Google (Gemini API) lists gemini-3.1-flash-lite with an earliest possible shutdown date of 7 May 2027. Google (Vertex AI) lists gemini-3.1-flash-lite with no shutdown date, only a minimum date of 7 May 2027 or later. The provider’s pages are quoted below.
What the provider’s page says
Google · Gemini API
Earliest possible shutdown date: 7 May 2027. The provider gives the exact date with advance notice.
Replacement the provider names: gemini-3.5-flash-lite
Gemini 3 models: gemini-3.1-flash-lite | May 7, 2026 | May 7, 2027 | gemini-3.5-flash-lite
Source: ai.google.dev/gemini-api/docs/deprecations, read 13 Nov 2026
Google says the dates in its table are the earliest possible shutdown dates and that it will give the exact date with advance notice. Where a row says requests route to the replacement, the endpoint is not shut down. Rows under Deprecated models or Deprecated agents are listed by Google as already shut down.
Google · Vertex AI
No shutdown announced. The page gives a minimum date only: 7 May 2027 or later.
Gemini models: gemini-3.1-flash-lite | May 7, 2026 | May 7, 2027 or later |
Source: cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versions, read 13 Nov 2026
Google says retirement timelines may be extended but will not be moved earlier than the date listed. A date with 'or later' is a minimum availability date, not an announced retirement.
Check your own code
The model shutdown checker finds every model ID in code or a config file that has a row, counts the days from today and shows the same quotes. Nothing you paste leaves your browser. The Breakage Calendar lists the dates we track for other releases and shutdowns.
This page quotes the provider’s table. It does not say that a move to the replacement was tested, and the replacement may behave differently or take different parameters. Run your own tests before you change a model ID.