---
title: "UnprocessableEntityResponseError"
---

Unprocessable Entity - Semantic validation failure


## Fields

| Field                                                                                                    | Type                                                                                                     | Required                                                                                                 | Description                                                                                              | Example                                                                                                  |
| -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
| `error`                                                                                                  | [components.UnprocessableEntityResponseErrorData](../components/unprocessableentityresponseerrordata.mdx) | :heavy_check_mark:                                                                                       | Error data for UnprocessableEntityResponse                                                               | \{<br/>"code": 422,<br/>"message": "Invalid argument"<br/>}                                               |
| `openrouter_metadata`                                                                                    | Dict[str, *Nullable[Any]*]                                                                               | :heavy_minus_sign:                                                                                       | N/A                                                                                                      |                                                                                                          |
| `user_id`                                                                                                | *OptionalNullable[str]*                                                                                  | :heavy_minus_sign:                                                                                       | N/A                                                                                                      |                                                                                                          |