Fusion turns classic ensemble methods into a production API primitive
sull · x · 2026-07-24
A quoted post highlights Fusion, a production API primitive built around ensemble methods. Instead of optimizing for a single “smartest” model, Fusion runs several models and uses a judge to reconcile their answers.
In tests across 25 research questions, the mixed panel reportedly matched frontier performance for about a quarter of the cost. The point is not a new model, but a new serving pattern: ensemble methods from classic ML are becoming a first-class production API feature.
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