> ## 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 |