# grok-3-mini

Calls to the model grok-3-mini on xAI stopped working on October 14, 2026.

## The error xAI returns once grok-3-mini is gone

HTTP 400

```json
{"code":"invalid-argument","error":"Model not found: grok-3-mini"}
```

## What to use instead

Move to grok-4.3. grok-4.3 with a low reasoning effort is the closest equivalent, though the price floor is considerably higher than Grok 3 Mini's was.

- API: xAI (api.x.ai)
- Model: grok-3-mini
- Released: June 1, 2024 (models.dev)
- Kind: Model retirement
- Takes effect: October 14, 2026
- Calls after that day: fail
- Calls it hits: `model grok-3-mini`
- Source: [models.dev](https://modeldeprecations.dev/api/v1/models.json?provider=xai)
- Verified: November 6, 2026, against xAI's own pages
- Page: https://www.okapi.bot/models/xai/grok-3-mini/

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