Share of articles that were written by humans or generated by AI
Monthly, January 2020 to May 2025; Based on a sample of 65,000 English-language articles published online
A line chart displaying the share of articles written by humans versus those generated by AI from January 2020 to May 2025. Human-created articles comprised about 95% in 2020, declining to 52% by May 2025. In contrast, AI-generated articles increased from around 5% to 48% since the launch of ChatGPT in November 2022.
