Blog
Product updates, guides, and engineering notes from the team.
How to call the Fusion API (OpenRouter)
A practical guide to calling the OpenRouter Fusion API: the endpoint, request shape, custom panels, the judge model, and streaming — with copy-paste examples.
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Fusion API Python example (OpenRouter)
Call the OpenRouter Fusion API from Python using the openai SDK: a minimal example, streaming, and a custom panel via extra_body — copy-paste ready.
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Fusion API Node.js example (OpenRouter)
Call the OpenRouter Fusion API from Node.js / TypeScript: the openai SDK, streaming, a custom panel, and a raw fetch example — copy-paste ready.
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Using the Fusion API in Cursor, Cline, LangChain & Vercel AI SDK
How to plug the OpenRouter Fusion API into Cursor, Cline, LangChain and the Vercel AI SDK — since it is OpenAI-compatible, it drops into each in a few lines.
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Why the Fusion API costs more than a single model
A Fusion API call is billed as the sum of every model in the panel plus the judge — here is how that adds up, the typical multiplier, and when it is worth paying.
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Why running the same model twice makes it smarter
Most of the gain from multi-model Fusion comes from the synthesis step — not model diversity. Even pairing a model with a copy of itself improves results.
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DRACO, explained: how to benchmark deep research
DRACO grades models on 100 deep-research tasks across 10 domains — accuracy, completeness, citations, and penalties for risky claims. Here is how it works.
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