The speaker says that training models now typically requires domain expertise, for example in investment banking, law, or medicine.

“We've trained them how to reason through problems, how to call tools, how to, you know, do a lot more complex things. Um, and so now, uh, we're, we're certainly at a point where, uh, you typically need some level of real expertise to be able to train these models, um, you know, whether that's, you know, being an investment banker or that's being a lawyer or a doctor, whatever it is.”