> ## 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.

# Choice

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `finish_reason` | [components.FinishReason](../components/finishreason.mdx) | :heavy\_check\_mark: | N/A | stop |
| `index` | *int* | :heavy\_check\_mark: | N/A | |
| `logprobs` | [Nullable\[components.Logprobs\]](../components/logprobs.mdx) | :heavy\_check\_mark: | N/A | |
| `message` | [components.Message](../components/message.mdx) | :heavy\_check\_mark: | N/A | |
| `native_finish_reason` | *Nullable\[str]* | :heavy\_check\_mark: | N/A | |