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Exclusive | Who is Edward Tian? He wants to keep his GPTZero app free for users to take on ChatGPT
- GPTZero, which can sniff out AI-written text, has been accessed by 80,000 people since its January 3 launch, said Edward Tian, who wrote the app in a Toronto cafe
- The grandson of a Tsinghua University-trained electrical engineer, Tian is months from completing his double major in computer science and journalism
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Edward Tian, who wrote the app that sniffs out ChatGPT’s bot-written text, said he will keep a version of ZeroGPT free, even as he is being approached to work with the plagiarism-detection service Turnitin and other companies.
GPTZero, written by Tian over three days in a cafe over the New Year holiday, has been accessed by 80,000 people since its January 3 launch, Tian said in an interview from Toronto.
Featuring the tagline “humans deserve to know the truth”, the app is aimed at educators, and can assess whether a corpus of text was written by humans or artificial intelligence (AI). It was so successful that it crashed the app, requiring the online host Streamlit to step in to support a larger amount of web traffic.
“There was so much hype and excitement surrounding ChatGPT, but like with any new technology, we have to adopt it responsibly”, said Tian, a 22-year-old Princeton University senior who is months away from his finals in computer science and journalism. “That was the main motivation for GPTZero.”

ChatGPT was launched in November by OpenAI, a seven-year old AI research lab founded by its chief executive Sam Altman, who counts the world’s wealthiest man and Tesla chief executive Elon Musk as an early backer.
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