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.
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.