---
title: "Arena"
---

Design Arena only: arena to query. Defaults to `models` when source is `design-arena`.

## Example Usage

```python
from openrouter.operations import Arena

# Open enum: unrecognized values are captured as UnrecognizedStr
value: Arena = "models"
```


## Values

This is an open enum. Unrecognized values will not fail type checks.

- `"models"`
- `"builders"`
- `"agents"`