FusionPlugin Type | OpenRouter TypeScript SDK

The TypeScript SDK and docs are currently in beta. Report issues on GitHub.

Example Usage

import { FusionPlugin } from "@openrouter/sdk/models";

let value: FusionPlugin = {
  id: "fusion",
};

Field	Type	Required	Description	Example
`analysisModels`	string[]	:heavy_minus_sign:	Slugs of models to run in parallel as the “expert panel” the judge analyzes. Each model receives the same user prompt with web_search + web_fetch enabled. Capped at 8 models to bound cost amplification. When omitted, defaults to the Quality preset from the /labs/fusion UI (~anthropic/claude-opus-latest, ~openai/gpt-latest, ~google/gemini-pro-latest).	[ “~anthropic/claude-opus-latest”, “~openai/gpt-latest”, “~google/gemini-pro-latest” ]
`enabled`	boolean	:heavy_minus_sign:	Set to false to disable the fusion plugin for this request. Defaults to true.
`id`	”fusion”	:heavy_check_mark:	N/A
`maxToolCalls`	number	:heavy_minus_sign:	Maximum number of tool-calling steps each panelist (analysis model) and the judge model may take during their agentic web-research loop. Models with web_search/web_fetch enabled iterate until they produce a text response or hit this ceiling. Defaults to 8. Capped at 16.	12
`model`	string	:heavy_minus_sign:	Slug of the model that performs both the judge step (with web_search + web_fetch) and the final synthesis. When omitted, defaults to the first model in the Quality preset.	~anthropic/claude-opus-latest

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