# inception/mercury-3

Calls to the model inception/mercury-3 on OpenRouter stop working on November 8, 2026.

On November 8, 2026, the model inception/mercury-3 will be retired. Requests specifying model inception/mercury-3 will fail after this date. OpenRouter will no longer support or serve this model.

## The error OpenRouter returns once inception/mercury-3 is gone

HTTP 404

```json
{"error":{"message":"No endpoints found for inception/mercury-3.","code":404}}
```

## What to use instead

OpenRouter stops serving it, so you must move your requests to another model it lists.

- API: OpenRouter (openrouter.ai)
- Model: inception/mercury-3
- Released: October 16, 2026 (models.dev)
- Kind: Model retirement
- Takes effect: November 8, 2026
- Calls after that day: fail
- Calls it hits: `model inception/mercury-3`
- Source: [Model list](https://openrouter.ai/api/v1/models)
- Verified: November 6, 2026, against OpenRouter's own pages
- Page: https://www.okapi.bot/models/openrouter/inception/mercury-3/

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