GPTZero, the three-year-old AI detection startup that Princeton grad Edward Tian first created as a senior thesis project, has been acquired by Superhuman, the companies announced On Tuesday.
However, Tian did not disclose the terms of the deal. Told Business Insider GPTZero has more than 19 million registered users and $30 million in annual recurring revenue.
In 2024, Tian told TechCrunch that it was profitable. Tian and co-founder CTO Alex Cui, friends since high school, raised a $3.5 million seed round led by Uncork Capital, followed by a $10 million Series A in June 2024 led by Footwork co-founder Nikhil Basu Trivedi, along with several other notable investors including Reach Capital, Zack Altman’s Alt Capital, and Neo. In total, the company raised only $13.5 million.
Superhuman – a company formed at the time of grammar purchased email provider Superhuman was rebranded last year and under that name – it already had an AI detection tool built into its platform. GPTZero’s mission is to help humans detect and prevent AI slippage. Grammarly’s tool helps users, often students, determine whether their writing appears AI-generated, then modify it so it doesn’t. As for why Superhuman bought out a competitor, Superhuman They say That “two AI detectors are better than one.”
