TypeScript SDKAPI ReferenceModels

MessagesFallbackParam - TypeScript SDK

MessagesFallbackParam type definition

Fallback model to try when the primary model fails or refuses. Only the model field is supported; per-attempt overrides are rejected.

Example Usage

1import { MessagesFallbackParam } from "@openrouter/sdk/models";
2
3let value: MessagesFallbackParam = {
4  model: "claude-opus-4-8",
5};

Fields

FieldTypeRequiredDescriptionExample
modelstring✔️N/A
additionalPropertiesRecord<string, *any*>➖N/A{"model": "claude-opus-4-8"}