ModelReasoning - OpenRouter

Reasoning effort configuration. Omitted for non-reasoning models and dynamic router models.

Fields

Field	Type	Required	Description	Example
`DefaultEffort`	optionalnullable.OptionalNullable[components.DefaultEffort]	➖	N/A	medium
`DefaultEnabled`	`*bool`	➖	Default reasoning enabled state when the client does not set `reasoning.enabled`.
`Mandatory`	`bool`	✅	When true, reasoning cannot be disabled and effort “none” is rejected.
`SupportedEfforts`	optionalnullable.OptionalNullable[[]*components.ReasoningEffort]	➖	Allowed reasoning effort values for this model, in descending effort order (highest first). Null means no allowlist — all gateway effort values are accepted.
`SupportsMaxTokens`	`*bool`	➖	Present and `true` when the model accepts `reasoning.max_tokens` in requests (Anthropic-style) instead of or in addition to `reasoning.effort`. Omitted otherwise.