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18 min read
Investigations
EY retracts study after GPTZero discovers it was mostly hallucinated by AI
Ernst & Young (EY) Canada published a cybersecurity report on loyalty program safeguards. GPTZero chased down every citation. Most were hallucinated.
We Analyzed 134 Moltbook Posts: Human Posts Outperform AI
We found that Moltbook is mainly AI-generated, but the small number of human-written posts drove a disproportionate share of the conversation
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5 min read
GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers
GPTZero's analysis 4841 papers accepted by NeurIPS 2025 show there are at least 100 with confirmed hallucinations
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26 min read
GPTZero finds over 50 new hallucinations in ICLR 2026 submissions
GPTZero used our Hallucination Check tool to find 50+ hallucinations under review at ICLR, each of which were missed by 3-5 peer reviewers.
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19 min read
Deloitte's Citation Situation & GPTZero's Citation Solution
GPTZero used our Citation Check to analyze the 234 page report and identified more than 30 issues out of the total 141 citations, including 19 hallucinations. Using GPTZero’s citation check would have saved ~$5000 per citation, all within minutes.
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9 min read
How Many Substack Authors Rely on AI-generated Content?
We investigated 100 popular Substack authors and found how many are likely using AI to help write their posts.
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6 min read
