Devin Fusion

Devin Fusion maintains frontier performance at a 35% lower cost on the new FrontierCode benchmark, thanks to its innovative multi-model routing approach. By using both a frontier model and a cost-effective "sidekick" model, Devin Fusion optimizes performance and cost efficiency. The sidekick pattern scales well with smarter models, as seen with the impressive cost reduction achieved with Fable 5 in the multi-model setup.