Introducing Fugu Max and Fugu Ultra v2: Orchestrating the Pareto Frontier

Sakana AI's Fugu Max and Fugu Ultra v2 use a coordinating system that draws on a pool of models. In its release announcement, the company describes Max as routing tasks to the smallest capable model to control cost, while Ultra v2 prioritizes demanding, multistep work.

The distinction gives customers two operating priorities within the same architecture. Max emphasizes economical output; Ultra emphasizes maximum capability. Sakana reports benchmark advantages for both, but those are its own evaluations. The supported design proposition is that choosing and coordinating models becomes part of the service, rather than requiring the customer to make every selection.