# Google Gemini 3 Pro (preview) — deprecation status

> Yes — Gemini 3 Pro (preview) is retired. Google shut it down on March 9, 2026; API requests to it now fail. The recommended replacement is Gemini 3.1 Pro (preview).

The first Pro model of the Gemini 3 generation, and one of the shortest-lived entries in this catalog: released November 2025, shut down March 2026, less than four months later. Preview ids on the Gemini API carry real shutdown risk.

## Facts

| Field | Value |
| --- | --- |
| Provider | Google |
| Model id | `gemini-3-pro-preview` |
| Status | Retired |
| Released | November 18, 2025 |
| Shutdown | March 9, 2026 (143 days ago) |
| Last verified | July 30, 2026 |

## Replacement

- **Gemini 3.1 Pro (preview)** (`gemini-3.1-pro-preview`) · recommended — https://modeldeprecations.dev/google/gemini-3.1-pro-preview
  - The successor is also a preview id. On the Gemini API, preview does not mean experimental so much as short-lived — plan to move again.
  - Parameters it accepts: https://modelparams.dev/models/google/gemini-3.1-pro-preview

```diff
- "model": "gemini-3-pro-preview"
+ "model": "gemini-3.1-pro-preview"
```

## FAQ

### When did Google Gemini 3 Pro (preview) shut down?

Google Gemini 3 Pro (preview) shut down on March 9, 2026. API requests to it fail from that date onward.

### What replaces Google Gemini 3 Pro (preview)?

Google recommends Gemini 3.1 Pro (preview) (`gemini-3.1-pro-preview`) as the replacement for Google Gemini 3 Pro (preview). The successor is also a preview id. On the Gemini API, preview does not mean experimental so much as short-lived — plan to move again.

### Is Google Gemini 3 Pro (preview) still available?

No. Google Gemini 3 Pro (preview) is retired and no longer served — it was shut down on March 9, 2026. Calls to it return an error.

### How do I migrate from Google Gemini 3 Pro (preview) to gemini-3.1-pro-preview?

Swap the model id in your API call: replace "gemini-3-pro-preview" with "gemini-3.1-pro-preview". The successor is also a preview id. On the Gemini API, preview does not mean experimental so much as short-lived — plan to move again.

## Sources

- [Gemini API deprecations](https://ai.google.dev/gemini-api/docs/deprecations) — accessed 2026-07-30

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Canonical page: https://modeldeprecations.dev/google/gemini-3-pro-preview
JSON: https://modeldeprecations.dev/api/v1/models/google/gemini-3-pro-preview.json