Author

Lang Cao

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#artificial intelligence Preprint Sep 2026

MedRouter: Demystifying Knowledge Differences Across Medical LLMs for Routing-Based Reasoning

This paper introduces MedRouter, an agentic system that uses an embedding-based multi-label router to select and query specialist LLMs, then passes their responses to a generator to produce the final answer, and proposes SCALE (Specialist Competence-Aware Learning), a two-stage training framework.

Lang Cao, Bing-Hang Lu, Yu-Hao Shen et al. · 0 citations

Jun 2026

Z-1: Efficient Reinforcement Learning for Vision-Language-Action Models

The results show that systematic GRPO post-training can substantially improve flow-based VLA policies without additional private demonstrations, and outperforms the published sota models.

Lang Cao, Renhong Chen, Luyi Li et al. · arXiv.org · 0 citations