> ## 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.

# TaskClassificationModel

## Fields

| Field             | Type    | Required             | Description                                                                                                                                                                                    | Example             |
| ----------------- | ------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------- |
| `id`              | *str*   | :heavy\_check\_mark: | Model identifier (permaslug).                                                                                                                                                                  | openai/gpt-4.1-mini |
| `tag_token_share` | *float* | :heavy\_check\_mark: | Fraction of this classification's sampled token volume attributed to this model (0–1). Sums to ≤1 across the returned models (only top-N are included and unattributed requests are excluded). | 0.75                |
| `tag_usage_share` | *float* | :heavy\_check\_mark: | Fraction of this classification's sampled requests attributed to this model (0–1). Sums to ≤1 across the returned models (only top-N are included and unattributed requests are excluded).     | 0.55                |