Wow, this is incredible. OP you (I?) should train a few models with different personalities/tasks and pair them with the 5 GitHub Monaspace fonts accordingly, allowing people in multifont programs to easily get different kinds of help in different situations. Lots of little ideas sparked by this… in general, I think this a good reminder that we are vastly underestimating fonts in discussions of UI (and, it appears, UX in full!)