It's literally just calling the OpenAI APIs with some overly complex system prompt. It is laughably useless, constantly lies, but some of our bigger (read: soul-less corpo) customers love it because they can get rid of a portion of their CS team even further than they've already been doing.
From what I've noticed, it's mostly marketers, spammers/scammers, and the C-level and their investor buddies that are excited about AI, and the not-so-cynic in me can't see it for anything else other than a way for them to fire people en-masse to make more money by automating their jobs away, regardless of if the quality is horrendous or not.
I think we're already reaching a point where regular people are kind of sick of all the AI shit, though. Who knows, maybe people start abandoning anything that smells of AI en-masse? It's nice to dream, anyway.