LinkedIn : 41 % of long posts would be generated by artificial intelligence

On LinkedIn, a considerable share of posts may no longer be written by humans. According to a study by the company Pangram, which specializes in detecting AI-generated content, 41% of long posts on the professional social network would be entirely written by an artificial intelligence, compared with 30% for short posts.

A study conducted on nearly one million posts

Pangram analyzed nearly one million posts viewed by internet users across different social networks over a two-month period using its own detection model, which the company reports has a very low false positive rate. Result: LinkedIn stands out clearly from the other platforms studied. Professional posts made up only about one third of the total sample, but they accounted for 62% of all content identified as AI-generated.

According to the study reported by Fast Company, this finding makes LinkedIn the most saturated platform with content produced by AI tools among those examined.

LinkedIn far ahead of other networks

The comparison with other platforms is revealing. According to data reported by Gizmodo:

• On X, about 9% of short posts are entirely generated by AI, a figure that rises sharply once hybrid human-AI content is included
• On Reddit, 13% of long texts and 3% of short texts are identified as AI-generated
• On Substack, only 10% of long-form content is AI-generated, compared with 12% for shorter formats

LinkedIn therefore stands out very clearly, a gap that the authors of the study attribute in particular to the culture of professional content and to the pressure, felt by many executives and freelancers, to publish regularly in order to maintain their visibility.

What this changes for businesses

For marketing teams and companies that rely on LinkedIn for their communications, these results raise a fundamental question: that of the perceived credibility of content when its human or artificial origin becomes difficult to distinguish. Several experts cited by the trade press note that overly polished posts, with a uniform tone, are increasingly associated by users with automated writing, which can harm the real engagement generated by a post.

On the side of digital technology tools, this study is part of a broader movement to verify the provenance of content, as platforms and AI detectors improve on both sides.

Frequently Asked Questions

How was the Pangram study conducted?

Pangram analyzed nearly one million posts viewed by users on multiple social networks over two months using its own model for detecting AI-generated content.

Why does LinkedIn concentrate so much AI-generated content?

According to experts cited in the study, the culture of regular posting and the pursuit of professional visibility drive many users to turn to AI tools to produce their writing.

Are other social networks as affected?

No: according to the study, LinkedIn comes in far ahead, well ahead of X, Reddit or Substack, where the share of fully AI-generated content remains much lower.

Sources

• Fast Company — LinkedIn is the ‘most AI-saturated platform,' new study suggests
• Gizmodo — A Study Tried to Quantify How Many LinkedIn Posts Are 100% AI
• Pangram — AI Content Is Everywhere on Social Media, Especially LinkedIn

This article was written with the help of artificial intelligence. Editorial policy