> ## 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.

# ChatRequestReasoning

Configuration options for reasoning models

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `effort` | [OptionalNullable\[components.ChatRequestEffort\]](../components/chatrequesteffort.mdx) | :heavy\_minus\_sign: | Constrains effort on reasoning for reasoning models | medium |
| `summary` | [OptionalNullable\[components.ChatReasoningSummaryVerbosityEnum\]](../components/chatreasoningsummaryverbosityenum.mdx) | :heavy\_minus\_sign: | N/A | concise |