A Princeton grad built a $30 million AI detection business. Now he's selling it to Superhuman.

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  "company": {
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  "data": {
    "url": "https://www.businessinsider.com/superhuman-acquires-gptzero-ai-authenticity-tools-2026-6",
    "title": "A Princeton grad built a $30 million AI detection business. Now he's selling it to Superhuman.",
    "excerpt": "A Princeton grad built a $30 million AI detection business. Now he's selling it to Superhuman.\n\nJun 23, 2026, 6:30 AM PT\n\nAs AI-generated content storms the internet, productivity company Superhuman is acquiring GPTZero, an AI detection startup cofounded by Edward Tian and Alex Cui in 2023.\n\nGPTZero, which Tian, now 26, built as a senior at Princeton, went viral after its launch and has since evolved to include additional tools to detect hallucinations and AI-generated content in social media feeds.\n\nThe companies declined to share the financial terms of the deal. GPTZero is valued at over $88 million, according to PitchBook, and it's backed by investors like Uncork Capital, Neo, Footwork, and Jack Altman.\n\nGPTZero has grown rapidly since its launch three years ago, Tian said. He added that it surpassed 19 million registered users and $30 million in annual recurring revenue.\n\nAs part of the acquisition, Tian and Cui will join Superhuman to lead a team focused on authenticity. GPTZero's 30 employees will also join Superhuman, Superhuman CEO Shishir Mehrotra said.\n\n\"When you're buying a business like this, the people come first,\" Mehrotra said of GPTZero's cofounders.\n\nSuperhuman was formerly known as Grammarly and changed its name after acquiring Superhuman, an email app popular across Silicon Valley and among venture capitalists.\n\nIt now offers a variety of productivity tools...",
    "summary": "Superhuman acquires GPTZero for $30M.",
    "planning": false,
    "image_url": "https://i.insider.com/6a39acb6d175c90a6a6fab1f?width=1200&format=jpeg",
    "confidence": 0.6755,
    "published_at": "2026-06-23T13:30:01Z",
    "article_sentence": "As AI-generated content storms the internet, productivity company Superhuman is acquiring GPTZero, an AI detection startup cofounded by Edward Tian and Alex Cui in 2023.",
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    "related_company_name": "GPTZero",
    "related_company_domain": "gptzero.me"
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