The amount of AI-generated content you scroll through might be far greater than you think, according to a new study by the AI detection platform Pangram.
Pangram asked users of its Chrome extension to opt in to sharing their browsing results with the platform. From those results, Pangram used its AI detection model—which has a 0.01% false positive rate, according to the company—to scan nearly 1 million posts that users scrolled through across the internet over the course of two months.
Pangram only scanned posts that users came across—meaning that AI slop is not just contained to spam sites but actually prevalent on the social media platforms that humans frequent most, including LinkedIn, X, Medium, Reddit, and Substack.
On X, a quarter of long-form content was fully written by AI, but another 23% was AI-assisted. Substack was the long-form platform with the lowest rate of AI-written content, yet more than one-fifth of its posts were still flagged as AI-generated or -assisted.
But LinkedIn had the highest proportion of AI-generated pieces, the Pangram data suggests.
