> ## 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 |
| - | - | - | - | - |
| `as_of` | *str* | :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 |
| `end_date` | *str* | :heavy\_check\_mark: | Resolved end of the date window (UTC, inclusive). | 2026-05-11 |
| `start_date` | *str* | :heavy\_check\_mark: | Resolved start of the date window (UTC, inclusive). | 2026-04-12 |
| `version` | [components.RankingsDailyMetaVersion](../components/rankingsdailymetaversion.mdx) | :heavy\_check\_mark: | Dataset version. Field names and grain are stable for the life of `v1`. | |