Professor denounces mass AI fraud on an exam at Brown

geox 348 points 462 comments June 28, 2026
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Discussion Highlights (20 comments)

fhn

the professor has all the power in the classroom. If you don't want cheating, define better conditions for the exam. You allowed a take-home exam which means students are able to use any and all resources.

hackermailman

They're going to have change everything so use of an AI assistant doesn't matter because once they graduate they're just going to continue using it anyway. If it's a math for finance course then some kind of model building for the midterm and being marked on the quality of the model or something. If AI becomes so good that it always chooses the best fitting model and requires no numerical optimization then they will have to change the courses to be more like UChicago where it's primarily undergrad directed research but AI assisted.

danny_codes

Damn that's crazy. Guess the take home test is dead now. I never understood this behavior from undergrads though, you're paying so much for an education and then you just skip the education part? Why bother?

pants2

When you're a student in a competitive program at a top university, graded on a curve, and you know your fellow classmates are cheating with AI, you have little choice but to do the same. Especially when jobs for new grads are harder to come by and there's more pressure to also go above and beyond with internships and side projects during your time in school. There's no way to compete without cheating.

michaelfm1211

The problem isn't AI, it's that you gave a take-home exam expected no one to cheat.

throwawaypath

Administration needs to eschew "technology" and demand analog solutions: hand written exams in proctored rooms, no devices out in the classroom, no take home work, etc.

nitwit005

These articles consistently fail to acknowledge students were cheating in large numbers prior to these AI tools being available. It was certainly not difficult to cheat at a "closed book" take home exam before.

djoldman

> This year, the economist decided that both the midterm and the final exams for his course would be of the take-home, closed-book type (there is a certain tradition of this at Ivy League schools). These news articles are just tiresome at this point. Obviously folks cheated previously, obviously it's easier now, obviously the answer has been to not have take homes all along.

JimsonYang

As of now chatgpt subsidies its consumer subscription-I wonder if cheating on exams will be still promiment once students are forced to pay $30 a month Since students are notorious for being cheap

cherryteastain

His research is in Game Theory. He should have realized that, in a situation where all competitors are (possibly) using LLMs, the game theoretic optimal choice is to use LLMs.

userbinator

take-home, closed-book type What an oxymoron. I agree with the others here that AI isn't the problem.

recursivedoubts

In the AI era, tests are going to have to be in person and hand written. I have written an article on how I have adjusted my classes to the situation: https://htmx.org/essays/universities-and-ai/ Ironically, I think the AI era may make university degrees a better signal of the intellectual abilities of students due to the presence of pre-computer infrastructure like large lecture halls, industrial-scale copiers, etc.

gchallen

> He has conclusive evidence that at least 50 students cheated on the March midterm exam, making it the biggest known scandal at Brown and in the entire Ivy League I'd like a citation for this being the "biggest known scandal" in the "entire Ivy League". Frequently such situations are kept somewhat quiet, for a variety of reasons. But fifty students is not a large number in courses that can enroll hundreds or up to a thousand students.

nephihaha

Time for hand written essays again. That way, at least if they do use AI, they will have had to process some of the content a bit more.

tty456

"take home, closed book" This is a trap. I understand they've done this in the past, but profs are paranoid now. I don't believe he's 100% correct on each incident of fraud and he's going to ruin students [academic] lives because of it.

ungreased0675

> “…if we want to preserve the future of higher education” He understands the stakes here. If a university degree becomes useless, then what?

jackphilson

It's the old game that he's trying to preserve. It's time to move on to the new game. When the landscape shifts beneath you, its very low probability that the existing structures on the landscape are a good fit for the new landscape, and the structures on the new landscape must be rethought from first principles.

neilv

I'm saddened and concerned by these allegations of a deficit of integrity. I was very fortunate to attend Brown University for grad school, and consider it a great place. Why would many people who were also fortunate to attend there not honor that opportunity?

beloch

"This year, the economist decided that both the midterm and the final exams for his course would be of the take-home, closed-book type (there is a certain tradition of this at Ivy League schools). “It’s a very nice kind of exam, because as you’re giving students practically unlimited time to complete it, it lets you make it harder than normal, to see how far they can go.” ... "But it also hurts him that the one time in 34 years that he decided to offer a take-home exam, for highly justified reasons, the response was wide-scale fraud." ----------------- Not to in any way defend or condone academic misconduct, the fact that this was his teaching-career-first take-home exam is probably relevant. Take home exams can be fiendish . I remember having one in grad school where we were given a very insufficient 36 hours to complete it, and many people just didn't sleep. That was from a prof who knew what he was doing. This guy may have accidentally made his exam absolutely sadistic. Couple this with the fact that students often have other exams they need to be studying for in the same time window. The pressure can be immense. The temptation to use AI to help is going to be hard for many to resist unless the penalties are severe and strictly enforced. AI cheating is probably going to be a problem going forward in all situations, but open-book, take-home tests are going to bring it out more strongly than other test formats.

xp84

This may be a hot take, but: The problem is that kids, even (or especially?) in the elite schools, are treating college as a box to tick. At the Ivies, for many students, it's nothing more than the requisite means to get their ticket punched so they can become/remain part of the elite class. This has been the conventional wisdom for half a century. Now, this paragraph doesn't apply to an economics class like his, which is actually a useful degree, but many students will never use what they learn in college in a professional capacity, so it barely even matters if some (maybe even most?) students cheat because outside of the useful degrees, it's mainly a sorting hat to determine who works at Starbucks to pay back student loans, while rolling their eyes because of their 'valuable degree,' and who works there unironically, to pay their bills. What needs to happen though is that students at all levels need to either believe that they need to learn what they're choosing to take courses in, or even better, actually innately want to learn it to satisfy their own interest. Either will do. If you have neither intention toward the material, of course you'll cheat your way through it. No student who actually wants to learn would waste their time and money taking a class only to not learn, and cheat their way through it.

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