Nearly Half of LinkedIn Long-Form Posts Now AI-Generated, Study Finds

Executive Briefing

• Reveals over 40% of LinkedIn long-form posts (250+ words) are fully AI-generated, per Pangram Labs research
• Analyzes more than one million posts across LinkedIn, X, Substack, Medium, and Reddit
• Shows LinkedIn accounts for 62% of all AI-flagged content despite representing only a third of scanned posts
• Finds X/Twitter most saturated overall, with nearly half of articles either fully or partially AI-generated
• Highlights professional platforms see more AI use than casual ones, contradicting expectations about identity disclosure