I struggle with biology a lot at school and AI helps me study biology, explaining concepts to me and answering my questions. It's also incredibly useful for exam practice, to explain mark schemes and how to answer questions. AI can give step-by-step solutions to maths questions, dissecting them as it carries along. I have also used AI to create multiple mnemonics for me while studying biology and chemistry. While I was doing my research project, some of the research was incredibly difficult to understand so along with background reading, AI helped to break down huge paragraphs into content I could understand.
My friends and I use AI to help them create and modify their revision schedules. A lot of people also use AI to talk to it when they are struggling with their mental health and need someone who wouldn't judge them. Although this doesn't directly link to your question, mental health and academic performance are linked, and when one suffers, the other goes down with it.
On exam day, AI is useful for last minute questions, light-hearted jokes, and advice.
People who know how to use AI and use it well will benefit from it. It's an incredibly resource and we all should make the best of it.