StreamPro: From Reactive Perception to Proactive Decision-Making in Streaming Video

In three linesStreamPro introduces StreamPro-Bench, a benchmark evaluating proactive video streaming understanding across three dimensions: perception, temporal reasoning, and proactive agency. The framework proposes CB-Stream Loss to address supervision imbalance and applies GRPO with multi-grained rewards. Results: 41.5 on StreamPro-Bench vs 10.4 previously, 78.9 on StreamingBench-RTVU.

Summary generated by Claude — human-verified