Cursor Releases Cursor Router: A Request-Level Classifier Delivering Frontier Coding Quality at 30–50% Lower Cost

MarkTechPost · 1 month ago · 28 ● 3 sources

Cursor released Cursor Router, a request-level classifier that directs coding tasks to the most appropriate model before execution runs, achieving 30–50% cost savings in early-access deployments by routing routine work away from frontier-priced models. The system was trained on 600,000+ live requests and evaluated across millions of real requests using user satisfaction as the reward signal, accounting for cache misses when switching models mid-conversation. Cost reduction comes from routing simple and UI tasks to cheaper models while keeping complex, long-horizon problems on frontier reasoning models, addressing a usage pattern where 60% of developers default to a single expensive model for all work.