# gemini-1.0-flash

Calls to the model gemini-1.0-flash stopped working on October 14, 2026.

## The error Gemini API returns once gemini-1.0-flash is gone

Once it is closed to new API keys: HTTP 404

```json
{"error":{"code":404,"message":"This model models/gemini-1.0-flash is no longer available to new users. Please update your code to use a newer model for the latest features and improvements.","status":"NOT_FOUND"}}
```

Once it is shut down: HTTP 404

```json
{"error":{"code":404,"message":"models/gemini-1.0-flash is not found for API version v1beta, or is not supported for generateContent. Call ModelService.ListModels to see the list of available models and their supported methods.","status":"NOT_FOUND"}}
```

## What to use instead

gemini-2.5-flash, named first, is closed to some callers (Google: "we are limiting access to the 2.5 models to users who have actively used them in the past." Projects that already called it keep it; new projects are told to use 3.5 Flash-Lite or 3.8 Flash.). No replacement that holds is named yet. Flash has stayed the name for the fast tier across four generations, so this is the natural target. Google now limits 2.5 Flash to projects that already used it, so a new project should take the current Flash id.

- API: Gemini API (generativelanguage.googleapis.com)
- Model: gemini-1.0-flash
- Kind: Model retirement
- Takes effect: October 14, 2026
- Calls after that day: fail
- Calls it hits: `model gemini-1.0-flash`
- Source: [models.dev](https://modeldeprecations.dev/api/v1/models.json?provider=google)
- Verified: November 6, 2026, against Gemini API's own pages
- Page: https://www.okapi.bot/models/gemini-api/gemini-1.0-flash/

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent