AI visibility words, in plain English
GEO, AEO, citation, mention. Short answers to the words you will meet.
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Google AI Overviews vs AI Mode
AI Overviews is a short AI summary above Google results. AI Mode is a separate mode for longer answers and follow-ups. One table, checked November 2026.
AI share of voice
AI share of voice is your mentions divided by all company mentions in AI answers. The formula, a worked example, and what is not counted.
AI visibility
AI visibility is how often AI answers name your company for your customers' questions. The 3 numbers that measure it, with a worked example.
Brand entity
A brand entity is the one thing AI connects your name, domain, place and offer to. A plain definition, an example and the signals that help.
AI citation vs mention
What is an AI citation? A link to a page the AI used. A mention is your name in the answer. You can get one without the other.
Generative engine optimization (GEO)
Generative engine optimization (GEO) means making your pages easy for AI to find, quote and name. Plain definition, origin and one example.
GEO vs SEO vs AEO
GEO vs SEO vs AEO: mostly the same work with a different scoreboard. One table: goal, where it shows, what is measured, what overlaps.
llms.txt
llms.txt is a Markdown file that sums up a site for AI tools. One large study found little use: 97% of files got no requests in May 2026.
Query fan-out
Query fan-out means AI splits one question into several smaller searches and reads the results of each. How it works, with Google's own words.
Zero-click search
A zero-click search ends on the results page with no click to a website. Why AI answers add to it, and what a company can do.