> ## 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.

# ServerToolNativeModel

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `providers` | List\[*str*] | :heavy\_check\_mark: | N/A | \[<br />"Anthropic",<br />"Google"<br />] |
| `slug` | *str* | :heavy\_check\_mark: | N/A | anthropic/claude-4.5-sonnet |