I think AI models are different form ML models, atleast mathematically. ML models and the mathematics behind it are explained thoroughly and people (who learnt about ML models) why certain ML models work or do not work. The AI models which are sprining left and right now I doubt people(again who learnt about AI models) have complete understanding about why they work, similar to how X-rays were used by doctors but they did not know why it worked. I guess for buisness case of ChatGPT if it is brining in the money why should it not be used?