> ## 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.

# UnifiedBenchmarksMeta

## Fields

| Field        | Type                                                                                                | Required             | Description                                                                                                                                                    | Example                                                                                      |
| ------------ | --------------------------------------------------------------------------------------------------- | -------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
| `AsOf`       | `string`                                                                                            | :heavy\_check\_mark: | ISO-8601 timestamp of when this data was last updated.                                                                                                         | 2026-06-03T12:00:00Z                                                                         |
| `Citation`   | `*string`                                                                                           | :heavy\_check\_mark: | Required attribution when republishing this data, or null when results span multiple sources (attribute each item individually by its `source` discriminator). | Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings). |
| `ModelCount` | `int64`                                                                                             | :heavy\_check\_mark: | Number of unique models in the response.                                                                                                                       |                                                                                              |
| `Source`     | [\*components.UnifiedBenchmarksMetaSource](../../models/components/unifiedbenchmarksmetasource.mdx) | :heavy\_check\_mark: | The source filter applied, or null when all sources are returned.                                                                                              | artificial-analysis                                                                          |
| `SourceURL`  | `*string`                                                                                           | :heavy\_check\_mark: | URL of the upstream data source, or null when results span multiple sources.                                                                                   | [https://artificialanalysis.ai](https://artificialanalysis.ai)                               |
| `TaskType`   | `*string`                                                                                           | :heavy\_check\_mark: | The task\_type filter applied, or null if showing all.                                                                                                         |                                                                                              |
| `Version`    | [components.UnifiedBenchmarksMetaVersion](../../models/components/unifiedbenchmarksmetaversion.mdx) | :heavy\_check\_mark: | Dataset version.                                                                                                                                               |                                                                                              |