There was a comment on here saying this was an implied diss of SQLModel, but now that I came back to reply to it it's gone. Weird. Since it's implied I couldn't find it in the slides.
In any case, there is a slide in the talk that has both the Pydantic and SQL Alchemy logos. As far as I know, there’s only one (somewhat popular) library that ties these two together. I think the speaker makes a persuasive case that data, domain, API, and other models should remain related but distinct.