# Investigations

## [We Analyzed 134 Moltbook Posts: Human Posts Outperform AI](https://gptzero.me/news/moltbook-investigation/)
We found that Moltbook is mainly AI-generated, but the small number of human-written posts drove a disproportionate share of the conversation

Mar 12, 2026
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5 min read

## [GPTZero finds 100 new hallucinations in NeurIPS 2025 accepted papers](https://gptzero.me/news/neurips/)
GPTZero's analysis 4841 papers accepted by NeurIPS 2025 show there are at least 100 with confirmed hallucinations

Jan 21, 2026
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26 min read

## [GPTZero finds over 50 new hallucinations in ICLR 2026 submissions](https://gptzero.me/news/iclr-2026/)
GPTZero used our Hallucination Check tool to find 50+ hallucinations under review at ICLR, each of which were missed by 3-5 peer reviewers.

Dec 05, 2025
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19 min read

## [Deloitte's Citation Situation & GPTZero's Citation Solution](https://gptzero.me/news/deloitte-australia-citation-check/)
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.

Nov 26, 2025
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9 min read

## [How Many Substack Authors Rely on AI-generated Content?](https://gptzero.me/news/substack-human-vs-ai-writers/)
We investigated 100 popular Substack authors and found how many are likely using AI to help write their posts.

Nov 15, 2024
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6 min read

## [Second-Hand Hallucinations: Investigating Perplexity's AI-Generated Sources](https://gptzero.me/news/gptzero-perplexity-investigation/)
Jun 11, 2024
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6 min read

## [NYT sued OpenAI for copyright infringement, GPTZero develops tool to detect matches in AI training data](https://gptzero.me/news/nyt-sued-openai-for-copyright-infringement-gptzero-develops-tool-to-detect-matches-in-ai-training-data/)
Apr 02, 2024
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2 min read

## [New York Times Investigates Fake AI Biographies on Amazon with GPTZero](https://gptzero.me/news/nyt-investigates-fake-biographies-with-gptzero/)
Mar 20, 2024
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2 min read

## [Newsguard’s GPTZero Powered Investigation](https://gptzero.me/news/newsguards-gptzero-powered-investigation/)
Jul 16, 2023
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1 min read

## [Ways to by-pass AI Detection?](https://gptzero.me/news/gptzero-by-passers/)
Mar 01, 2023
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4 min read