It's probably not using any AI in any modern sense of the word, it's just there for marketing purposes. What I'm guessing it really is, is more fancy sensors (temperature sensors in more locations, infrared sensors, moisture sensors), and multiple heating elements and/or fans that can be individually turned on and off, connected to a more complicated PID controller that is adjusted based on the selected dish. So it can do things like detect that the rear is hotter than the front and turn off the rear heating element, or detect if too much moisture is being released and turn down the temperature, but it's ultimately the same kind of technology as any oven with a temperature knob uses.
I rarely use my oven for anything other than pizza, bread and cookies, so it's probably not very useful to me, but maybe it's convenient if you do things like cooking a whole turkey or something?