Cursor launches Cursor Router, an intelligent model router that cuts team costs by 30–50%

Cursor 发布智能模型路由系统 Cursor Router

Cursor Router is a request classifier that picks the best model per task based on query, context, complexity, and domain. Simple work hits cheap models, UI tasks go to the model with best taste, and hard long-horizon problems reach frontier reasoning models. Trained on 600k+ live requests and tested across millions of online A/B requests, Auto Intelligence mode matches Fable-level satisfaction at ~60% lower team cost; Auto Balance beats Opus 4.8 satisfaction at ~36% lower cost. Early enterprise accounts saved 30–50% vs routing everything to Opus 4.8 with no quality drop. The post doesn't disclose routing latency or cache-hit details.

Why it matters: Cursor made model routing a user-facing feature with concrete training data (60K requests, millions of A/B tests). Score stays below 80 because this is cost optimization rather than a new capability, and the post doesn't disclose actual savings or switching latency between mod...