> ## 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. # RankingsDailyMeta ## Fields | Field | Type | Required | Description | Example | | ----------- | ------------------------------------------------------------------------------------------- | -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------ | | `AsOf` | `string` | :heavy\_check\_mark: | ISO-8601 timestamp of when the response was generated. Reflects data-freshness because the underlying materialized view continuously ingests upstream events. | 2026-05-12T02:00:00.000Z | | `EndDate` | `string` | :heavy\_check\_mark: | Resolved end of the date window (UTC, inclusive). | 2026-05-11 | | `StartDate` | `string` | :heavy\_check\_mark: | Resolved start of the date window (UTC, inclusive). | 2026-04-12 | | `Version` | [components.RankingsDailyMetaVersion](../../models/components/rankingsdailymetaversion.mdx) | :heavy\_check\_mark: | Dataset version. Field names and grain are stable for the life of `v1`. | |