ai-writing-detection
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Pangram Labs
Pangram Labs builds AI-content detection software that identifies text written by models like ChatGPT, Claude, Gemini and Grok. Founded in 2024 by Stanford classmates Max Spero and Bradley Emi, the New York-based startup claims third-party-verified accuracy above 99.9% and a roughly 1-in-10,000 false-positive rate, positioning itself as the reliable alternative to perplexity-based detectors. Its detector, browser extensions, API and LMS integrations are used across education, publishing, enterprise trust & safety and platform moderation.
Max Spero
Max Spero is the cofounder and CEO of Pangram Labs, a New York based startup building the most accurate AI-text detector on the market. A Stanford-trained machine learning engineer who worked at Google, Two Sigma, Yelp, and the self-driving company Nuro, Spero co-founded Pangram in 2023 with college dormmate Bradley Emi to draw a clean line between human and machine writing. His obsession is the false positive rate: he refused to ship at one wrong call in a hundred and pushed his team to one in ten thousand. Pangram now powers AI verification for journalism platforms, schools, and trust and safety teams, and raised about $4M in seed funding in 2025.