FlashGaze prunes video patches before ViT encoding with Quadtree DP, holding 98% of LongVideoBench accuracy at a 20% retained ratio on Qwen3-VL-8B while cutting peak GPU memory by 1.8x
FlashGaze is a training-free method that reduces spatiotemporal redundancy before ViT encoding by using pixel-space differences as a proxy for information loss and Quadtree Dynamic Programming to jointly decide patch dropping, merging, and keeping under a fixed budget; on Qwen3-VL-8B and NVILA-8B-Video it achieves higher accuracy and lower TTFT across multiple video understanding benchmarks, and at a 20% retained ratio preserves 98% of the full-input LongVideoBench accuracy.