gemini-3.5-flash — Available or Deprecated — shutdown May 19, 2027 or later or N/A or 2026-10-02 — sources disagree
For gemini-3.5-flash, provider is Google (Vertex AI); lifecycle status is disputed: Available per cloud.google.com, Deprecated per github.blog; shutdown / retirement date is disputed: May 19, 2027 or later per cloud.google.com, N/A per ai.google.dev, 2026-10-02 per github.blog, recorded from its source on 2026-09-28; source re-checked 2026-10-13.
- Provider
- Google (Vertex AI) our reading
- Google (Gemini Developer API) per ai.google.dev
- GitHub Copilot per github.blog
- Model ID / API name
- gemini-3.5-flash verified
- Lifecycle status
- Available sources disagree
- Release date
- May 19, 2026 verified
- Shutdown / retirement date
- May 19, 2027 or later sources disagree
- Recommended replacement
- gemini-3.6-flash (not available to select in Google AI Studio; the endpoint is not shutting down and automatically routes API requests to gemini-3.6-flash) per ai.google.dev
- Platform / deployment scope
- Gemini Developer API (ai.google.dev) per ai.google.dev
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
gemini-3.5-flash | May 19, 2026 | May 19, 2027 or later | |
— cloud.google.com, retrieved 2026-09-28
Where each value comes from
The values above are stated away from the sentence quoted with the answer, so the passage that states them is shown here too.
Release date and Shutdown / retirement date
Model ID | Release date | Retirement date | Replacement model ID | gemini-4-argon | October 13, 2026 | No retirement date announced | | gemini-3.5-flash-lite | July 21, 2026 | July 21, 2027 or later | | gemini-3.5-flash | May 19, 2026 | May 19, 2027 or later | |
— all from cloud.google.com, retrieved 2026-09-28
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Lifecycle status
cloud.google.com says lifecycle status is Available, as of 2026-09-28.
gemini-3.5-flash | May 19, 2026 | May 19, 2027 or later | |
https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versioning
github.blog says lifecycle status is Deprecated, as of 2026-10-12.
Gemini 3.5 Flash | 2026-10-02 | Gemini 3.8 Flash |
https://github.blog/changelog/2026-09-03-upcoming-deprecation-of-selected-github-copilot-models
Shutdown / retirement date
cloud.google.com says shutdown / retirement date is May 19, 2027 or later, as of 2026-09-28.
gemini-3.5-flash | May 19, 2026 | May 19, 2027 or later | |
https://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versioning
ai.google.dev says shutdown / retirement date is N/A, as of 2026-10-12.
gemini-3.5-flash | May 19, 2026 | N/A | gemini-3.6-flash (not available to select in Google AI Studio; the endpoint is not shutting down and automatically routes API requests to gemini-3.6-flash) |
https://ai.google.dev/gemini-api/docs/deprecations
github.blog says shutdown / retirement date is 2026-10-02, as of 2026-10-12.
Gemini 3.5 Flash | 2026-10-02 | Gemini 3.8 Flash |
https://github.blog/changelog/2026-09-03-upcoming-deprecation-of-selected-github-copilot-models
Where the other sources' values come from
These values were taken from a passage elsewhere on the other source's page, not from the row quoted with it above.
Release date
Model | Release date | Shutdown date | Recommended replacement | gemini-3.8-flash-tts | September 22, 2026 | No shutdown date announced | | gemini-3.8-flash-lite-tts | September 22, 2026 | No shutdown date announced | | gemini-3.8-live | September 15, 2026 | No shutdown date announced | | gemini-3.8-live-extended-thinking | September 15, 2026 | No shutdown date announced | | gemini-3.8-flash | September 2, 2026 | No shutdown date announced | | gemini-3.7-flash | August 13, 2026 | N/A | gemini-3.8-flash (not available to select in Google AI Studio; the endpoint is not shutting down and automatically routes API requests to gemini-3.8-flash) | gemini-3.6-flash | July 21, 2026 | No shutdown date announced | | gemini-3.5-flash-lite | July 21, 2026 | No shutdown date announced | | gemini-3.5-flash | May 19, 2026 | N/A | gemini-3.6-flash (not available to select in Google AI Studio; the endpoint is not shutting down and automatically routes API requests to gemini-3.6-flash) |
— ai.google.dev, retrieved 2026-10-12
Sources
- cloud.google.comhttps://cloud.google.com/vertex-ai/generative-ai/docs/learn/model-versioning
- ai.google.devhttps://ai.google.dev/gemini-api/docs/deprecations
- github.bloghttps://github.blog/changelog/2026-09-03-upcoming-deprecation-of-selected-github-copilot-models