Google's E-E-A-T framework didn't die — it got re-weighted by the AI engines. Here is how Experience, Expertise, Authoritativeness, and Trustworthiness translate into Citation Share inside ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews.
OpenAI just ran the cleanest demonstration yet of the rule that governs the answer engines: a claim does not count until the engines — and the independent experts they cite — confirm it. A GEO case study on how AI-era authority gets built.
The Real Estate AI Citation Share Study — 25 brands, 62 prompts, 5 engines. Zillow locks the data layer. Compass leads on tech positioning. Individual named agents consistently outperform brokerages. And the regional expert answer layer is wide open in virtually every market.
AI engines treat online casino queries differently than sportsbook queries. Tighter citation. Harder hedging. More legality framing. The operators that understand the asymmetry will own discovery in a category the licensed sportsbook story does not cover.
Citation Share is the metric that describes the new decision surface — the share of AI-engine answers that name a brand inside a defined query universe. Share of voice and branded search are now upstream of where the consideration set is composed. The full methodology.
More than a third of consumers now begin product research with AI before Google. Luxury travel sits at the leading edge of that shift. The luxury hotel buyer \u2014 researching a $2,000-a-night booking, a honeymoon, a milestone trip \u2014 is among the heaviest users of conversational AI for purchase research. Cond\u00e9 Nast and T+L outrank ad spend.
Everything-PR's modeled franchise measuring which brands AI engines surface when buyers ask the question. Five indexes live: APAC, India, Water Infrastructure, Energy Transition, Indian Travel. 125 brands. Five engines.
Citation Share is a pipeline channel, not a measurement initiative. How to frame AI visibility in the financial terms a CFO uses — addressable market, revenue at risk, cost, and payback period.
Sephora, Ulta, and Amazon product pages are functioning as retrieval anchors inside AI beauty answers. Brands without retailer review depth face a measurable Citation Share ceiling — even with premium positioning and strong editorial.
Dermatologist references appear in the cited source stack for the majority of skincare AI answers. Why the derm authority layer is the largest under-appreciated driver of beauty Citation Share — and how it works.