LinkedIn has emerged as one of the leading sources that AI chatbots draw on when generating answers, according to two new studies that point to a quiet but significant shift in how professional content flows through the AI ecosystem.
The first report, from SEMRush, analyzed 325,000 unique prompts across ChatGPT, Google AI Mode, and Perplexity between January and February 2026, spanning 12 major industry categories. The findings placed LinkedIn as the second most-cited source for AI-generated answers, trailing only Reddit. That positions both platforms as critical territory for marketers trying to get their brands mentioned in AI responses.
A second study, from data tracking platform Profound, examined top AI answer sources between November 2025 and February 2026 and found LinkedIn was the fifth most-cited domain overall.
More striking was the trajectory: LinkedIn had been outside the top 20 just three months earlier, making its rise one of the fastest among any domain tracked in the study. Profound also found LinkedIn to be the single most-cited domain for professional queries across major AI platforms.
The data reinforces earlier findings from SEMRush and Spotlight published earlier this year, which identified LinkedIn content, and LinkedIn articles in particular, as increasingly important sources for AI-generated responses. LinkedIn itself has acknowledged the trend, publishing guidance on how it improved its own AI discovery citations and offering tips to help users optimise their profiles and content for AI answer placement.
The shift matters because the way people search is changing. According to a 2026 study from SEO agency Eight Oh Two, 37% of consumers now begin their searches with AI tools rather than traditional search engines. As that figure continues to climb, the sources AI chatbots rely on will increasingly determine which brands, professionals, and ideas get surfaced to users.
For social media marketers and SEO strategists, the findings suggest that optimising for generative engine visibility, not just traditional search rankings, is becoming essential. And within that landscape, LinkedIn and Reddit have emerged as the two social platforms that matter most.
