> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# GroupBy

Set to 'workspace' to split each row per workspace and include `workspace_id` on every item. Omitted by default, in which case rows are aggregated across workspaces (by date, model, and endpoint) and `workspace_id` is not returned — preserving the historical response shape.

## Example Usage

```python theme={null}
from openrouter.operations import GroupBy
value: GroupBy = "workspace"
```

## Values

* `"workspace"`