The AI Visibility Index is an EPR research property measuring Citation Share, sentiment, source frequency, and adjacent AI Visibility dimensions across a defined competitive set within a category. This index is operationalized through a category-specific prompt slate, executed across five AI engines (ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews), and reported with full methodology disclosure.
A directional modeling study of how five AI engines—ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews—surface and rank crisis communications firms as of May 2026.
AI engines now synthesize B2B marketing answers before buyers click a single link. Here's who controls those answers — and how Citation Share is measured and won.
A five-step audit framework for measuring your brand's Citation Share across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Two to four hours. The baseline measurement that drives everything that follows.
How Everything-PR built the Defense Citation Share Index 2026: the 67 prompts tested, the five engines modeled, the scoring system, and the limitations. Full methodology behind the ranking.
Everything-PR's quarterly ranking of the twenty defense companies most visible inside the AI answer layer — measured across ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews.
Bard became Gemini, Claude and Perplexity reshuffled the chatbot landscape, and Google AI Overviews changed everything. The 2023 ChatGPT vs Bard piece updated for the modern AI engine ecosystem.
Zillow, Redfin, Realtor.com own the data. Reddit owns "should I buy now."
AI engines are answering influencer marketing questions right now — and most brands have no idea whether they appear in those answers. Who controls the citation share, what the source architecture looks like, and how to build AI visibility in the category.
AI Policy is the communications discipline that shapes how AI gets regulated. Not AI ethics. Not AI governance. Not the same as AI regulation. A definitive guide to the discipline behind AI's most contested decisions.