And which would you prefer: a cheaper, on-demand version of iTalki (you get matched with someone already online versus booking in advance), or an AI-based app/service that you can chat back-and-forth with whenever you want?
The problem with matching with someone already online is that it might not be the right person. There are tutors that are very good, helpful and inspiring. I don't think I want to talk to random person online. A long term relationship with several tutors are helpful because we know each other better and I'm more comfortable speaking in front of them.
So I would prefer AI > random someone