The rules of search have changed. Users are no longer searching for links.They’re searching for answers, and AI models are deciding which brands become part of the conversation. In this whitepaper, GUT explores the new era of GEO (Generative Engine Optimization), revealing how brands can increase visibility, authority, and Share of Voice across AI-driven platforms like ChatGPT, Gemini, Perplexity, and Google AI Overviews. Backed by the analysis of nearly half a million prompts and over 1.7 million AI citations, this report breaks down the strategies, KPIs, methodologies, and content ecosystems shaping the future of organic visibility in the AI era.