When eMarketer analyzed the shifting landscape of AI-driven referral traffic, they turned to BrightEdge's exclusive research to reveal a surprising trend that's catching marketers off guard. Our "Open Frontier of Mobile AI Search" report was prominently featured, showing that 94% of ChatGPT referral traffic actually comes from desktop users—completely flipping conventional mobile-first wisdom on its head. The data helped eMarketer illustrate how brands betting everything on mobile optimization for AI discovery are missing the vast majority of actual clicks, with desktop users driving the real engagement across ChatGPT, Google Gemini, and Perplexity platforms.