Argos Trains Multimodal Agents With Grounded Verification

Microsoft Research introduces Argos, a verification framework for multimodal reinforcement learning that rewards not only correct outputs but also visual and temporal grounding. Evaluated against baselines including Qwen2.5-VL-7B and Video-R1 and measured on 1,500-sample validation sets, Argos reduces visual hallucinations, improves spatial reasoning and learning stability, and yields better robotics and real-world task performance while using fewer training samples.