YouTube Overtakes Reddit as AI’s Go-To Social Source

A new report from Adweek finds YouTube has overtaken Reddit as the top social platform cited by large language models and other AI systems. Reddit’s historical strength came from its text-rich discussions but video content on YouTube now appears more frequently in AI training citations. This shift reflects broader changes in how AI ingests and prioritizes content from social media. YouTube’s vast library of videos gives models more diverse and context-rich data to draw from, diminishing Reddit’s once-dominant position in that specific role.