How much internet writing is AI?

Algorithmic Law - Project / Claude

You said: How much of the internet is taken up by AI writing, search the web?

Claude responded:

The short answer: it depends heavily on what you are measuring and where you look. The numbers range wildly depending on methodology.

The response discussed:

The headline prediction vs. reality.
What actual studies are finding.
Where AI content actually shows up.
Caveats about AI detectors.

It cited a Graphite estimate that around half of newly published web articles were AI-generated by late 2024 / May 2025, and an Ahrefs estimate that many newly crawled pages contained AI-generated content, with the caveat that "contained" does not mean "primarily written by."

You said: search the web for better sources, that are more well known?

Claude responded with a cleaner picture drawing on:

Europol's speculative 90% by 2026 figure.
Axios reporting on Graphite's Common Crawl study.
The University of Maryland / UMass / Microsoft / Pangram Labs newspaper study.
Slate's point about mixed human/AI writing.
The cultural marker of "slop" as a word of the year.

Claude's defensible summary was:

"Roughly half of newly published web articles show signs of AI generation, but only about 9% of actual US newspaper journalism does, and nearly all detected usage at major outlets is hybrid rather than fully machine-written - which is why recognizing the specific tells, not just flagging AI vs. human, is the useful skill."

Claude is AI and can make mistakes. Please double-check responses.