Google launches StreamVibe video agent to let AI decide when to speak up and help.

Google, together with teams from Stanford and Oxford, launched the StreamVibe video agent. It can distinguish between what users say explicitly, what they haven't said yet, and changes in tasks mid-way, autonomously deciding when to speak up. Its StreamVibe-VL model is based on Qwen3.5-9B, with response timing and quality improved by 10.7% compared to other models, and its memory system improving active interaction by another 12.3%. Tests show that after videos exceed five minutes, all models struggle to grasp the right timing, with key content metrics based on their own historical answers dropping as much as 61.5%.