An Everything-PR explainer on the AI Visibility Index — the research program operated by 5W AI Communications across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Methodology, the Defense flagship, and how it relates to EPR's parallel Citation Share Index program.
The reference lexicon for communications in the answer-engine era — 24 entries plus a seven-principle Doctrine. Citation Share, GEO, Entity Graph, Answer Share, Source Authority, and the working vocabulary of the discipline.
AI Visibility is your brand's share of the answer in ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. The metric is Citation Share. A definitive guide to the discipline.
A new benchmark reveals Anduril Industries and Palantir Technologies are cited more frequently in AI assistants than the five largest U.S. defense primes combined. The Defense & Aerospace AI Visibility Index 2026, based on 28,400 prompts, shows Anduril and Palantir account for 35.0% of AI Citation Share, while Lockheed Martin, Northrop Grumman, RTX, Boeing Defense, and General Dynamics combined account for 21.1%.
The Everything-PR Citation Share Index 2026 ranks the 12 AI coding tools that surface most inside ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews — with pricing, funding, and who each one is for.