> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-7021d5f4.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# File - Python SDK

> File method reference

<Warning>
  The Python SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues).
</Warning>

## Fields

| Field       | Type             | Required             | Description                            |
| ----------- | ---------------- | -------------------- | -------------------------------------- |
| `file_data` | *Optional\[str]* | :heavy\_minus\_sign: | File content as base64 data URL or URL |
| `file_id`   | *Optional\[str]* | :heavy\_minus\_sign: | File ID for previously uploaded files  |
| `filename`  | *Optional\[str]* | :heavy\_minus\_sign: | Original filename                      |