> ## 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. # ChatRequestEffort Constrains effort on reasoning for reasoning models ## Example Usage ```go theme={null} import ( "github.com/OpenRouterTeam/go-sdk/models/components" ) value := components.ChatRequestEffortMax // Open enum: custom values can be created with a direct type cast custom := components.ChatRequestEffort("custom_value") ``` ## Values | Name | Value | | -------------------------- | ------- | | `ChatRequestEffortMax` | max | | `ChatRequestEffortXhigh` | xhigh | | `ChatRequestEffortHigh` | high | | `ChatRequestEffortMedium` | medium | | `ChatRequestEffortLow` | low | | `ChatRequestEffortMinimal` | minimal | | `ChatRequestEffortNone` | none |