> ## 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 |