Imagine that you’re helping judge a writing contest at your school. You want to make sure everyone did their own work. If someone used an artificial intelligence, or AI, model such as ChatGPT to write an entry, that shouldn’t count. But how can you tell whether something was written by AI? New research reveals a simple way to test whether a person wrote something or not. Just ask a bot to rewrite it.
“If you ask AI to rewrite content written by AI, it will have very few edits,” says Chengzhi Mao. When AI rewrites a person’s text, it typically makes many more changes
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Mao, Junfeng Yang and their colleagues designed a tool called Raidar. It’s a detector that uses AI rewriting to detect bot-generated text. Mao is a researcher at the Software Systems Lab at Columbia University in New York. Yang leads this lab.
