> ## 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.

# PricingOverride

A conditional override of the base pricing. An entry applies only when all of its condition fields (e.g. min\_prompt\_tokens, or the utc\_start/utc\_end time window) match the request; among applicable entries, later entries win per price key; price keys absent from an entry inherit the base price.

## Fields

| Field | Type | Required | Description |
| - | - | - | - |
| `Audio` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per audio input token |
| `Completion` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per token for completion (output) generation |
| `InputAudioCache` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per cached audio input token |
| `InputCacheRead` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per cached input token (read) |
| `InputCacheWrite` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per cache-write token |
| `InputCacheWrite1h` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per 1-hour cache-write token |
| `MinPromptTokens` | `*float64` | :heavy\_minus\_sign: | Condition: the entry applies when the total prompt tokens of a request are strictly greater than this threshold |
| `Prompt` | `*string` | :heavy\_minus\_sign: | Overridden price in USD per token for prompt (input) processing |
| `UtcDays` | \[][components.UtcDay](../../models/components/utcday.mdx) | :heavy\_minus\_sign: | Condition: UTC weekdays the entry applies on, evaluated at the request instant. Scopes the utc\_start/utc\_end window (or, without a window, the whole UTC day) to the listed days. Absent means every day. |
| `UtcEnd` | `*float64` | :heavy\_minus\_sign: | Condition: exclusive end of a daily UTC time window as an HHMM clock number (e.g. 400 = 04:00) |
| `UtcStart` | `*float64` | :heavy\_minus\_sign: | Condition: inclusive start of a daily UTC time window as an HHMM clock number (e.g. 100 = 01:00, 1030 = 10:30). The entry applies while the current UTC time is inside the half-open window \[utc\_start, utc\_end), which may wrap past midnight (utc\_start > utc\_end). |