Author
Alex Cui
GPTZero Investigation: One in Five Words at the UN General Assembly are AI-Generated
From September 8 to September 28, world leaders descended upon New York City for the 81st session of the United Nations General Assembly. This marked a major milestone in history as world leaders convened to discuss partnerships and debate major geopolitical challenges, including ongoing conflicts in Iran and Ukraine, and the role of humanity in the development of artificial intelligence. This year, the use of AI by world leaders and the debate over the use of AI have grown increasingly intertw
Edward Tian, Avikam Mangla, Alex Cui
· 6 min read
Chasing the Hallucinations: PwC report hallucinates product and government customers
Over the past year, a team of GPTZero investigators has used our Hallucination Check tool to uncover hallucinated citations in government reports, academic papers submitted to prestigious machine learning / artificial intelligence conferences like ICLR and NeurIPS, and research products from three of the big four consulting firms: Deloitte, Ernst & Young, and KPMG. This is the third in a series of investigations into reports containing hallucinated citations surfaced by an automated search pipel
Paul Esau, Om Ogale, Alex Cui
· 17 min read
How AP Verify is helping combat misinformation with GPTZero
The Associated Press’s AP Verify is an AI-powered tool that helps journalists verify text, photos and videos all in one place. As part of its text workflow, AP Verify integrates GPTZero for generative AI text detection.
Alex Cui, Adele Barlow
· 2 min read
Chasing the Hallucinations: KPMG's AI-Powered Attempt at "Redefining Excellence"
Over the past year, a team of GPTZero investigators has used our Hallucination Check tool to uncover hallucinated citations in government reports, academic papers submitted to prestigious machine learning / artificial intelligence conferences like ICLR and NeurIPS, and research products from two of the big four consulting firms: Deloitte and Ernst & Young. This is the second in a series of investigations into reports containing hallucinated citations surfaced by an automated search pipeline. Th
Paul Esau, Om Ogale, Alex Cui
· 18 min read
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.
Om Ogale, Paul Esau, Alex Cui
GPTZero AI Detection Benchmarking: The Industry Standard in Accuracy, Transparency and Fairness
Overview Welcome to GPTZero’s standardized benchmarking page. Here you’ll find the results of a comprehensive evaluation of our AI detector across a variety of domains, LLMs, and languages. Evaluations are updated quarterly, and raw predictions are available for researchers interested in reproducing results. One of the goals of this post is raise the standard for transparency across the entire AI detection industry. We believe that greater transparency will both increase the rigor and credibi
Alex Adam, Alex Cui
· 11 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
Nazar Shmatko, Alex Adam, Paul Esau, Alex Cui, Edward Tian
· 26 min read
GPTZero Tops Accuracy on Chicago Booth Benchmark in 2026
GPTZero outperforms other AI detectors like Pangram on Chicago Booth Benchmark, achieving ~99% accuracy and industry-leading recall for AI detection.
Emily Napier, Alex Adam, Adele Barlow, Alex Cui
· 4 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.
Paul Esau, Nazar Shmatko, Alex Adam, Alex Cui
· 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.
Nazar Shmatko, Paul Esau, Alex Cui
· 9 min read
GPTZero is Officially The Most Accurate Commercial AI Detector
GPTZero confirms its title as the most accurate commercial AI detector, outperforming competitors on the massive independent RAID benchmark.
Alex Adam, Alex Cui, Edward Tian
· 3 min read
Making America Hallucinate Again? GPTZero Detects New Errors in Major Government Report
On May 22, the U.S. Presidential Commission to Make America Healthy Again (MAHA), led by health secretary Robert F. Kennedy Jr., released a major report on the causes of chronic diseases in children. Yet within a week, news outlets including NOTUS, the New York Times and Washington Post reported that some of the publication’s hundreds of footnotes appeared garbled or fabricated, suggesting they’d been generated by AI. Using GPTZero’s Bibliography Scan tool, we identified nine fabricated sources
Paul Esau, Alex Cui, Nazar Shmatko
· 11 min read
Does AI Accelerate Thinking Skills or Atrophy Them?
A growing body of literature shows that if we don't use our critical thinking skills, we lose them.
Alex Cui
· 2 min read
We're the #1 rated product on G2 this year!
We’re beyond proud to share that out of hundreds of AI tools, GPTZero has been named as the #1 Best AI Software Product of 2025.
Edward Tian, Alex Cui
· 1 min read
How AI Detection Benchmarking Works at GPTZero (2025)
An overview of how AI detectors like GPTZero, TurnitIn, and Copyleaks compare in terms of accuracy rate, error rate, false positives and negatives for identifying AI-generated content.
Edward Tian, Alex Cui, Alex Adam
· 6 min read