
Meissa: Lightweight Offline Medical AI Agent
Meissa is a 4B-parameter multi-modal medical LLM that enables offline agentic capabilities by distilling trajectories from frontier models like GPT. It features unified trajectory modeling, three-tier stratified supervision for strategy selection, and prospective-retrospective learning for execution. Trained on 40K trajectories, it matches or exceeds proprietary agents across 13 medical benchmarks with 25x fewer parameters and 22x lower latency; fully open-sourced.





