The Generative AI Learning Penalty: Evidence from Chinese Secondary Education

> AI adoption raises homework scores by 18% and reduces completion time by 30%, but lowers monthly exam scores by 20% within six months. High-stakes entrance-exam scores fall by 18 and 24%, with the full penalty emerging only after about two years.

In Stephenson's "Diamond Age", an AI tutor-in-a-book helps a girl learn. Some [1] have suggested that current AI already can function like this book, which the study above contradicts. So is the problem that current AI needs to improve as a tutor, or is the model of using an AI as a tutor flawed?

[1] https://www.real-morality.com/post/diamond-age-ai-tutor