paper_type.json (333B)
1 { 2 "paper_type": "empirical", 3 "reason": "The primary contribution is R2-ROUTER, a method that jointly selects LLMs and output budgets with experimental results showing 4-5x cost reduction; while R2-BENCH (a new routing dataset) is introduced, it serves to validate the routing method rather than being the primary contribution." 4 }