arXivLin Huang, Yujuan Tan, Weisheng Li, Lixiang Zeng, Kun Yang, Suihan XiaoWed, Sep 9, 2026, 9:02 AM PDT

score 17.1

Router Cuts Chatbot Wait Times Using Smart Answer Filler

Original: PACE: Perceived-Latency-Aware Cascading Service Routing and Filler Control for QoE-Efficient Retrieval-Augmented Dialogue Serving

Writing ELI5 summary…