Pew Research finds 35% of web pages since ChatGPT AI-written
Technology
A new Pew Research study just revealed that 35% of web pages published since ChatGPT launched in late 2022 have clear signs of being written by AI.
Researchers looked at nearly half a million English-language pages and used special tools to spot patterns linked to AI writing.
Dot-coms 10x likelier to use AI
In a July 2026 sample, about one in 10 pages showed strong evidence of AI generation, but for newer content (post-ChatGPT), it jumps to over one-third.
Dot-com sites were way more likely to use AI than dot-edu or dot-gov sites, about 10 times higher, actually.
The study also noticed more "AI-style" writing quirks popping up, like em dashes and Oxford commas.
While the detection isn't perfect, Pew says these trends reflect how much AI is shaping what we read online now.