Humans can judge which of two slides looks better within seconds, whereas a grading model may use many reasoning tokens and still reach the wrong conclusion.

“This is something that we discovered, is like a human can look at two slides and within seconds say, "This one looks better." And if you have a model, like a grading, grading model try to go about doing that, um, it's gonna spend a whole bunch of reasoning tokens, this pixel's this way, this thing's that, uh, and then maybe come to the wrong conclusion.”