The company created a new YouTube account and tracked the number of AI-generated videos it saw on YouTube Shorts. Of the 500 videos it scrolled through, 104 (or 21%) were AI-generated, and 165 (33%) of those 500 videos were what Kapwing considers to be brainrot, or "nonsensical, low-quality video content that creates the effect of corroding the viewer’s mental or intellectual state while watching."