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GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

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Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#91

Could you run a similar analysis for pre-2020 papers? It'd be interesting to know how prevalent making up sources was before LLMs.

Yeah, it’s kind of meaningless to attribute this to AI without measuring the base rate.

It’s for sure plausible that it’s increasing, but I’m certain this kind of thing happened with humans too.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#92
post #41

Earlier quoted context omitted.

If I steal hundreds of thousands of dollars (salary, plus research grants and other funds) and produce fake output, what do you think is appropriate? To me, it's no different than stealing a car or tricking an old lady into handing over her fidelity account. You are stealing, and society says stealing is a criminal act.

We have a civil court system to handle stuff like this already.

We also have a criminal court system to handle stuff like this.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#93
post #2

Yuck, this is going to really harm scientific research. There is already a problem with papers falsifying data/samples/etc, LLMs being able to put out plausible papers is just going to make it worse. On the bright side, maybe this will get the scientific community and science journalists to finally take reproducibility more seriously. I'd love to see future reporting that instead of saying "Research finds amazing che…

> I'd love to see future reporting that instead of saying "Research finds amazing chemical x which does y" you see "Researcher reproduces amazing results for chemical x which does y. First discovered by z". Most people (that I talk to, at least) in science agree that there's a reproducibility crisis. The challenge is there really isn't a good way to incentivize that work. Fundamentally (unless you're independent weal…

> The challenge is there really isn't a good way to incentivize that work.

What if we got Undergrads (with hope of graduate studies) to do it? Could be a great way to train them on the skills required for research without the pressure of it also being novel?

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#95
post #28

NeurIPS leadership doesn’t think hallucinated references are necessarily disqualifying; see the full article from Fortune for a statement from them: https://archive.ph/yizHN > When reached for comment, the NeurIPS board shared the following statement: “The usage of LLMs in papers at AI conferences is rapidly evolving, and NeurIPS is actively monitoring developments. In previous years, we piloted policies regarding th…

> Even if 1.1% of the papers have one or more incorrect references due to the use of LLMs, the content of the papers themselves are not necessarily invalidated.

This statement isn’t wrong, as the rest of the paper could still be correct.

However, when I see a blatant falsification somewhere in a paper I’m immediately suspicious of everything else. Authors who take lazy shortcuts when convenient usually don’t just do it once, they do it wherever they think they can get away with it. It’s a slippery slope from letting an LLM handle citations to letting the LLM write things for you to letting the LLM interpret the data. The latter opens the door to hallucinated results and statistics, as anyone who has experimented with LLMs for data analysis will discover eventually.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#96

This is nice and all, but what repercussion does GPTZero get when their bullshit AI detection hallucinates a student using AI? And when that student receives academic discipline because of it? Many such cases of this. More than 100! They claim to have custom detection for GPT-5, Gemini, and Claude. They're making that up!

Indeed. My son has been accused by bullshit AI detection as having used AI, and it has devastated his work quality. After being "disciplined" for using AI (when he didn't), he now intentionally tries to "dumb down" his writing so that it doesn't sound so much like AI. The result is he writes much worse. What a shitty, shitty outcome. I've even found myself leaving typos and things in (even on sites like HN) because if you write too well, inevitably some comment replier will call you out as being an LLM even when you aren't. I'm as annoyed by the LLM posts as everybody else, but the answer surely is not to dumb us down into Idiocracy.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#97

I don't understand: why aren't there automated tools to verify citations' existence? The data for a citation has a structured styling (APA, MLA, Chicago) and paper metadata is available via e.g. a web search, even if the paper contents are not I guess GPTZero has such a tool. I'm confused why it isn't used more widely by paper authors and reviewers

Citations are too open ended and prone to variation, and legitimate minor mistskes that wouldn't bother a human verifier but would break automated tools to easily verify in their current form. DOI was supposed to solve some of the literal mechanical variation of the existence of a source, but journal paywalls and limited adoption mean that is not a universal solution. Plus DOI still doesn't easily verify the factual accuracy of a citation, like "does the source say what the citation says it does," which is the most important part.

In my experience you will see considerable variation in citation formats, even in journals that strictly define it and require using BibTex. And lots of journals leave their citation format rules very vague. Its a problem that runs deep.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#98
post #28

NeurIPS leadership doesn’t think hallucinated references are necessarily disqualifying; see the full article from Fortune for a statement from them: https://archive.ph/yizHN > When reached for comment, the NeurIPS board shared the following statement: “The usage of LLMs in papers at AI conferences is rapidly evolving, and NeurIPS is actively monitoring developments. In previous years, we piloted policies regarding th…

> the content of the papers themselves are not necessarily invalidated. For example, authors may have given an LLM a partial description of a citation and asked the LLM to produce bibtex (a formatted reference) Maybe I'm overreacting, but this feels like an insanely biased response. They found the one potentially innocuous reason and latched onto that as a way to hand-wave the entire problem away. Science already had…

Isn't disqualifying X months of potentially great research due to a misformed, but existing reference harsh? I don't think they'd be okay with references that are actually made up.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#99
post #75

Earlier quoted context omitted.

There should be a way to drop any kind of circular citation ring from the indexes.

It's tough because some great citations are hard to find/procure still. I sometimes refer to papers that aren't on the Internet (eg. old wonderful books / journals).

But that actually strengthens those citiations. The I scratch your back you scratch mine ones are the ones I'm getting at and that is quite hard to do with old and wonderful stuff, the authors there are probably not in a position to reciprocate by virtue of observing the grass from the other side.

Re: GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers

#100
post #28

NeurIPS leadership doesn’t think hallucinated references are necessarily disqualifying; see the full article from Fortune for a statement from them: https://archive.ph/yizHN > When reached for comment, the NeurIPS board shared the following statement: “The usage of LLMs in papers at AI conferences is rapidly evolving, and NeurIPS is actively monitoring developments. In previous years, we piloted policies regarding th…

> the content of the papers themselves are not necessarily invalidated. For example, authors may have given an LLM a partial description of a citation and asked the LLM to produce bibtex (a formatted reference) Maybe I'm overreacting, but this feels like an insanely biased response. They found the one potentially innocuous reason and latched onto that as a way to hand-wave the entire problem away. Science already had…

The wording is not hand-wavy. They said "not necessarily invalidated", which could mean that innocuous reason and nothing extra.
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