Investigations

Investigations Featured

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.

Dec 05, 2025 · 19 min read

Investigations Featured

Nazar Shmatko, Paul Esau, Alex Cui

Investigations Featured

Nazar Shmatko, Paul Esau, Alex Cui

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.

Nov 26, 2025 · 9 min read

Case Study Featured

Paul Esau, Alex Cui, Joe Zakielarz

Case Study Featured

Paul Esau, Alex Cui, Joe Zakielarz

Making America Hallucinate Again? GPTZero Detects New Errors in Major Government Report

Jul 03, 2025 · 11 min read

Investigations Featured

GPTZero Team, Vivienne Chen

Investigations Featured

GPTZero Team, Vivienne Chen

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.

Nov 15, 2024 · 6 min read

Investigations

Edward Tian

Investigations

Edward Tian

Second-Hand Hallucinations: Investigating Perplexity's AI-Generated Sources

Jun 11, 2024 · 6 min read

Investigations

GPTZero Team

Investigations

GPTZero Team

NYT sued OpenAI for copyright infringement, GPTZero develops tool to detect matches in AI training data

Apr 02, 2024 · 2 min read

Investigations

GPTZero Team

Investigations

GPTZero Team

New York Times Investigates Fake AI Biographies on Amazon with GPTZero

Mar 20, 2024 · 2 min read

Investigations

Edward Tian

Investigations

Edward Tian

Newsguard’s GPTZero Powered Investigation

Jul 16, 2023 · 1 min read

Education

Edward Tian

Education

Edward Tian

Ways to by-pass AI Detection?

Mar 01, 2023 · 4 min read

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