Carl Yan Shan
OpenAI
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How People Use ChatGPT
An NBER working paper by mostly OpenAI-affiliated authors uses automated classifiers, with no person reading the text, on a random sample of consumer ChatGPT messages. The authors report that messages unrelated to work grew from 53% to 73% of daily volume between June 2024 and June 2025, and that writing is the most common work use.