> ## 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. | |