> ## 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.OptionalNullable\[[components.ChatRequestEffort](../../models/components/chatrequesteffort.mdx)] | :heavy\_minus\_sign: | Constrains effort on reasoning for reasoning models | medium |
| `Summary` | optionalnullable.OptionalNullable\[[components.ChatReasoningSummaryVerbosityEnum](../../models/components/chatreasoningsummaryverbosityenum.mdx)] | :heavy\_minus\_sign: | N/A | concise |