Revising with ChatGPT: why it's a deceptively bad idea
May 28, 2026
You opened ChatGPT. You pasted your lecture notes. You asked "summarize this for me." 30 seconds later, you have a clean summary. You close the tab. You think to yourself: "good, I've studied".
Except you haven't. You haven't studied anything. You've read a summary.
And on exam day, you're going to feel the pain.
ChatGPT is an incredible tool. But for studying, it is probably the worst tool you can use. Here is why.
Problem Number 1: ChatGPT makes you believe you are learning
When you read a well-written summary, your brain experiences a feeling of fluidity. "Oh yeah okay, that makes sense."
This feeling is called fluency. And it's a trap.
Fluency is not a signal of memorization. It is a signal of familiarity. You recognize. You do not retrieve.
On exam day, you need to retrieve. Not recognize.
Result: you feel like you worked for 3 hours, but you learned nothing.
Problem Number 2: no active recall
All cognitive science studies say the same thing: we learn by testing ourselves, not by reading.
ChatGPT gives you summaries, explanations, reformulations. Passive content.
To really study, you must: - Close your notes - Ask yourself questions - Try to answer without help - Verify
ChatGPT does the opposite: it holds your hand the entire time. You never have to struggle. And struggling is precisely what makes you learn.
Problem Number 3: hallucinations
ChatGPT makes things up. Regularly. With confidence.
On your history lecture? It can give you a false date and explain it to you confidently. On your biology lecture? It can swap two concepts. On your law lecture? It can cite an article that doesn't exist.
The problem: you have no way of knowing when it is making things up. So you take false content for granted. You learn it. You write it down on the exam.
For a tool meant to help you succeed, that's quite a bug.
Problem Number 4: not tailored to your course
Your teacher has their own angle. Their key terms. Their grading logic.
ChatGPT spits back general content, based on web data. Not on your course.
Result: you learn things that are generally correct, but are not exactly what your teacher is grading on. Tough luck, they are the one grading you.
Problem Number 5: no study structure
Studying is not "understanding." It is: 1. Understanding 2. Memorizing 3. Repeating over time 4. Testing yourself regularly
ChatGPT helps you with step 1. And that's it.
For steps 2, 3, 4: you are on your own. So in reality, you don't do it. So you don't learn.
"Yeah but I just use it for summaries"
OK. But ask yourself honestly: you read the summary. You think "I'm good." What do you do next?
Do you test yourself? No.
Do you rewrite the summary without looking? No.
Do you review it again in 3 days? No.
You've just put a mental checkmark next to the subject. On D-day, you'll be surprised by the result.
The real problem: ChatGPT is not made for this
ChatGPT is a general assistant. It can write, code, translate, summarize, debate. It does 100 things okay.
But a study app is a specialized tool. Designed to do 1 thing: make you retain a course.
Using ChatGPT to study is like going to the gym in a pair of Crocs. You can. But it's not optimal.
What really works: a tool designed for studying
A real study app must do 3 things:
1. Work from YOUR course
Not generic content from the web. Your real course, with your real vocabulary, your real angles.
2. Force you to do active recall
Flashcards. Quizzes. Questions. Not summaries.
3. Make you review at the right time
Spaced repetition. Notifications. Tracking what you master and what you struggle with.
Why Koro AI is different from ChatGPT
Koro AI is designed solely for student revision.
You upload your course. The AI: - Generates a study guide based on your course - Creates flashcards tailored to what you need to retain - Provides quizzes to test yourself - Lets you chat with your course to dig into a specific point
Key difference: no fabrication. The AI works on your document, not on its general data. So no hallucination of dates or concepts.
And above all: you test yourself. So you actually learn.
It is the healthy alternative to ChatGPT for studying: an active learning tool, not a cheating tool.
Conclusion
Using ChatGPT to study is the illusion of learning. Passive reading, hallucinations, content not tailored to your course, no active recall, no spaced repetition. If you really want to retain your course, use a tool designed for it.