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

# no_capacity

> No capacity for this model right now. HTTP 503.

|           |                                                       |
| --------- | ----------------------------------------------------- |
| HTTP      | `503`                                                 |
| `code`    | `no_capacity`                                         |
| `type`    | `https://docs.cortex.foundation/problems/no_capacity` |
| Retryable | yes                                                   |

Every backend that can serve the requested model is saturated. It is specific to one model, so a moment usually clears it and another model is normally still available.

```json theme={null}
{
  "type": "https://docs.cortex.foundation/problems/no_capacity",
  "title": "No capacity for this model right now",
  "status": 503,
  "code": "no_capacity",
  "request_id": "req_…"
}
```

## Related

* [Errors](/reference/errors) - how to branch on `code`, and what not to render from `detail`.
* [Problem catalog](/problems) - every code, its status, and whether retrying helps.
* [Troubleshooting](/getting-started/troubleshooting) - what a message in the product means.