Ace
Short answer: use ChatGPT to test you, not to tell you. Asking it to summarise your notes feels productive but is just another way of rereading. Instead, give it your own lecture material and ask it to quiz you one question at a time, answer from memory before you look anything up, and ask it to explain only the questions you got wrong. Always check its answers against your notes, because it can be confidently wrong.
The trap: summaries feel like revision
The most common way students use ChatGPT for revision is to paste in a chapter and ask for a summary. It feels great: a long, messy topic turns into ten tidy bullet points, and you read them and nod along. The problem is that reading a summary is still reading. You are recognising information, not retrieving it, and recognising something is much easier than remembering it in an exam.
In a large review of study methods, Dunlosky and colleagues (2013) rated summarisation, highlighting and rereading as low-utility techniques. The two methods they rated highest were practice testing and spreading study out over time. A ChatGPT summary is a faster way to do a low-utility method.
What the research says about AI and learning
The clearest evidence so far comes from a field experiment with nearly a thousand high-school students by Bastani and colleagues (2025). Students who practised maths with a standard ChatGPT-style assistant solved more practice problems, but when the assistant was taken away, they did worse on the exam than students who had practised without it. Many had used it to get answers rather than to work things out. A version of the assistant designed to give hints instead of answers largely avoided that harm.
The lesson is not "don't use AI". It is that AI helps when it makes you think and hurts when it thinks for you. That lines up with decades of research on retrieval practice: Roediger and Karpicke (2006) found that students who practised recalling material remembered far more of it a week later than students who spent the same time rereading it.
How to revise with ChatGPT, step by step
- Start with your own material. Paste in or upload the lecture notes or slides you will be examined on, not "the topic in general". Your exam is about what your lecturer taught, which may differ from the internet's version.
- Ask for questions, one at a time. A wall of twenty questions with answers underneath tempts you to read ahead. One question, then wait for your answer, keeps you retrieving.
- Answer before you look. Type or say your answer from memory, even if you are unsure. The effort of trying is where the learning happens.
- Ask "why" only for the ones you missed. Then find the explanation in your own notes, not just in the chat.
- Come back to the misses later. Save the questions you got wrong and ask them again tomorrow and in a few days. Spaced repetition beats one long session. See our spaced repetition schedule.
Prompts that make it test you
- "Using only the notes below, ask me one exam-style question at a time. Wait for my answer, tell me if I'm right, and quote the line from the notes that proves it."
- "Give me a multiple-choice question on this section with four options. Make the wrong options ones a student who half-learned it would pick."
- "Here are the steps of the process from my notes. Shuffle them and ask me to put them back in order."
- "I got these questions wrong yesterday: [list]. Ask me them again in a different form."
The phrase "using only the notes below" matters. Without it, ChatGPT fills gaps with general knowledge, which may not match your course. Asking it to quote the line that proves each answer makes errors easier to spot. More prompts are in our guide to getting ChatGPT to quiz you.
Where ChatGPT lets you down
- It can be confidently wrong. Language models can state false things fluently. Check answers against your notes, especially numbers, definitions and names. Our guide to checking AI study answers explains how.
- It drifts off your syllabus. It may ask about things your course never covered, or explain them differently from your lecturer.
- It forgets what you got wrong. A chat is not a revision schedule; you have to track your misses yourself.
Tools built for this job handle those parts for you. Ace, for example, turns your own PDF, slides or lecture video into questions, keeps only questions it can back with a quote from your file, and shows that quote with every answer.
Frequently asked questions
Is it bad to use ChatGPT for revision?
No. It is bad to let it do the remembering for you. Using it to generate practice questions from your own notes, and answering them from memory, is a good use of it.
Should I ask ChatGPT to summarise my notes?
A summary can help you see the shape of a topic the first time through. For revision, it is a form of rereading. Spend the time on questions instead.
Can ChatGPT make flashcards from my notes?
Yes, if you paste or upload the notes. Check every card against your material, because some may be inaccurate or go beyond what your course covers.
How do I stop ChatGPT giving me the answer straight away?
Tell it explicitly: ask one question, wait for my answer, and only then reveal the correct one.
Sources
- Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4–58.
- Bastani, H., Bastani, O., Sungu, A., Ge, H., Kabakcı, Ö., & Mariman, R. (2025). Generative AI without guardrails can harm learning: Evidence from high school mathematics. Proceedings of the National Academy of Sciences, 122(26).
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249–255.
