AI models, like ChatGPT, increasingly reference social media for answers, with a recent analysis of 238,000 citations revealing clear patterns. Reddit leads with 3-4% of all citations, dominating with 99% coming from specific discussion threads rather than profiles or subreddit pages. This indicates that structured, self-contained posts are highly valued, as they effectively address user inquiries. In contrast, YouTube and LinkedIn citations focus on authority, with 65% of YouTube citations pointing to channel pages and nearly half of LinkedIn citations coming from personal profiles. Instagram, however, shifts the focus back to individual content rather than profiles, with 29% of citations from posts and 36% from reels. This platform's citations are almost evenly split, making it less predictable for AI models. The absence of X/Twitter is notable; despite its significance in real-time discussions, it barely registers in AI citations, highlighting a gap in its perceived authority. For brands, the implications are clear. Engaging in high-quality Reddit threads can significantly enhance visibility. On Instagram, a diverse content strategy is essential, given the balanced citation distribution. YouTube requires optimization of both channels and individual videos, while LinkedIn brands should focus on producing thought leadership articles to leverage their citation potential. The findings are specific to ChatGPT, and other AI models may have different preferences, so brands should remain adaptable in their strategies.