Selects the reasoning mode. standard is the default; pro engages deeper reasoning on models that support it, billed at standard token rates. Only supported by OpenAI GPT-5.6 and newer.
import ( "github.com/OpenRouterTeam/go-sdk/models/components")value := components.ReasoningModeStandard// Open enum: custom values can be created with a direct type castcustom := components.ReasoningMode("custom_value")