> ## 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 ## Example Usage ```typescript theme={null} import { UnifiedBenchmarksMeta } from "@openrouter/sdk/models"; let value: UnifiedBenchmarksMeta = { asOf: "2026-06-03T12:00:00Z", citation: "Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).", modelCount: 50, source: "artificial-analysis", sourceUrl: "https://artificialanalysis.ai", taskType: null, version: "v1", }; ``` ## 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` | *number* | :heavy\_check\_mark: | Number of unique models in the response. | | | `source` | [models.UnifiedBenchmarksMetaSource](../models/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` | [models.UnifiedBenchmarksMetaVersion](../models/unifiedbenchmarksmetaversion.mdx) | :heavy\_check\_mark: | Dataset version. | |