The speaker says he is using 3.7 for the V2 experiment because it is one of the leading models at the time and has performed well in his experience.

“uh risky proposition because gpt4o mini can't find uh cannot evaluate the hard outputs that 3.7 might be doing correctly right um so and so for this v2 i am using the 3.7 because it is one of the top reigning models right now and i've seen really good performance from it so we essentially swap these models as much as”