ai-content-detection
(3)
Copyleaks
Copyleaks is a New York-based content authenticity company that uses AI to detect plagiarism, AI-generated text, source code, and increasingly images and video. Founded in 2015 by Alon Yamin and Yehonatan Bitton, it serves educational institutions, publishers, and enterprises that need to verify whether content is original, licensed, or machine-generated, and it claims over 99% accuracy across 30+ languages with integrations into major learning management systems.
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.