# Vertex AI Gemini 3.5 Flash (Vertex AI) — deprecation status

> No — Gemini 3.5 Flash (Vertex AI) is not deprecated as of August 21, 2026. Vertex AI has not deprecated it, but publishes May 19, 2027 (in 250 days) as the earliest date it could be retired.

A current-generation Flash model on Vertex AI and the named successor to the 2.5 Pro line. Google guarantees at least 12 months of availability, so the published "May 19, 2027 or later" retirement date is a floor, not a commitment — the model is active with no firm shutdown date.

## Facts

| Field | Value |
| --- | --- |
| Provider | Vertex AI |
| Model id | `gemini-3.5-flash` |
| Status | Active |
| Released | May 19, 2026 |
| Shutdown (earliest) | May 19, 2027 (in 250 days) |
| Last verified | August 21, 2026 |

## FAQ

### When will Vertex AI Gemini 3.5 Flash (Vertex AI) shut down?

Vertex AI Gemini 3.5 Flash (Vertex AI) is scheduled to shut down on May 19, 2027, in 250 days. Vertex AI publishes this as the earliest possible retirement date rather than a firm commitment, so it may move later — but not earlier.

### Is Vertex AI Gemini 3.5 Flash (Vertex AI) still available?

Yes. Vertex AI Gemini 3.5 Flash (Vertex AI) is active and fully supported as of August 21, 2026.

## Sources

- [Vertex AI model versions and lifecycle](https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/model-versions) — accessed 2026-08-21

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