Also...reading the details...for GPT they used the antiquated 3.5 model from 2022 instead of the latest ones (I mean...wtf?), they evaluate responses in a vague manner with the ambiguous word "problematic" and some of the criticisms are pedantic and trivial: e.g. "all the chatbots wrote at a “difficult” reading level equivalent to college students, which reduces readability for the general public."

Boohoo.

I suspect that the current GPT 5.5 model, on thinking mode, would make short work of the questions mentioned in that research article.