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Fusion

#2 in LLM APIs & Gateways

openrouter · seit Juni 2026 · 9× · zuletzt 29. Juni 2026

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Fusion is a multi-model deliberation API by OpenRouter that sends a request in parallel to a panel of language models. A judge model compares the outputs and synthesizes structured analysis (consensus, contradictions, unique insights, and blind spots) that the final model uses to produce a better answer. On the DRACO benchmark, a panel of Fable 5 and GPT-5.5 achieved 69%, outperforming individual models. A budget panel of cheaper models also achieved frontier-level performance at lower costs.

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