Large educational improvements have been demonstrated in Africa with AI too. What seems to be happening is that benefits students gain from one-on-one tutoring, happen with AI which effectively functions as the same thing.

The article says they are using less powerful software in America than China, which is not what I would have expected for an American company.

Here’s the paper citied - https://onlinelibrary.wiley.com/doi/10.1002/anie.202407892