AI-Generated Content Growth Stalls at 50% of New Online Articles

The rapid rise of AI-generated writing following ChatGPT’s launch in late 2022 has unexpectedly leveled off, according to new data from digital marketing agency Graphite. The share of primarily AI-written articles, blog posts, and listicles has remained near 50% for over a year, defying fears of AI overwhelming human-authored content.

The big picture: Graphite’s analysis, based on a sample of 55,400 English-language URLs from the Common Crawl archive, found that AI-generated articles surged to 35.9% within a year of ChatGPT’s release in November 2022. By early 2024, that figure reached 48%, but growth has since stalled, hovering around half of all new online articles.

Why it matters: Researchers warn that as AI models increasingly train on their own output, the internet risks becoming a low-quality feedback loop of machine-generated content.

"These models are smart because of all the information we put on the web that was created without these models. If we stop creating knowledge that is independent of these models, what's going to fuel that?"

By the numbers:

• November 2022 (ChatGPT launch): AI-generated articles = 0%
• Within 1 year: 35.9% of new articles
• Within 2 years: 48% of new articles
• Early 2025 onward: ~50% of new articles

The methodology: Graphite analyzed 55,400 English-language URLs from Common Crawl, an open repository of web data. Articles were at least 100 words long, published between January 2020 and March 2026, and classified as articles or listicles. Each was scanned using AI-detection tools Pangram, GPTZero, and Copyleaks.

Reality check: Distinguishing purely AI-generated content from human-AI hybrid writing remains challenging. Many articles blend AI assistance (e.g., outlining, drafting, or editing) with human input, blurring traditional classifications. Graphite defines an article as "primarily AI-generated" only when most of its text is detected as AI-written or AI-assisted.

Between the lines: Graphite notes that AI content quality has improved rapidly, often matching or exceeding human-written material.

"The quality of AI content is rapidly improving. In many cases, AI-generated content is as good or better than content written by humans. It is often hard for people to distinguish whether content is created by AI."

The bottom line: While AI now writes nearly as many articles as humans, the growth of machine-generated content appears to have hit a ceiling—for now.