What is AI visibility? Definition, metrics, and how to measure it (2026)

AI visibility is how often — and how favorably — AI assistants like ChatGPT, Gemini, Claude and Perplexity mention your brand when answering the questions your customers ask. It’s the AI-era counterpart of search rankings: instead of ten blue links, there’s one synthesized answer, and you’re either in it or you’re not.

Why it became a metric

A growing share of buying research now starts as a conversation with an AI assistant instead of a search query. Those conversations end with two or three named recommendations. Brands in the answer get considered; brands outside it don’t get a page-two to live on — there is no page two.

The core metrics

• Visibility rate — the percentage of tracked prompts where your brand appears in the answer.
• Share of voice — your mentions relative to competitors’ across the same prompts.
• Named vs sourced — being recommended by name vs being cited as a source the answer was built from. Both matter; they’re won differently.
• Citations and citation gaps — which pages engines cite, and the pages that cite your competitors but not you.
• Sentiment / framing — not just whether you’re mentioned but how (“budget option” vs “the go-to for agencies”).

How measurement actually works

You define a prompt set (the real questions of your market), run it against multiple AI engines on a schedule, detect brand mentions in the answers, and trend the results. Answers drift constantly and engines disagree with each other — one snapshot is trivia; the time series is the asset.

AI visibility vs SEO

They correlate less than you’d hope. Ranking #1 on Google doesn’t guarantee a ChatGPT mention, and brands with mediocre rankings sometimes dominate AI answers because the sources engines trust happen to feature them. Measuring both sides — that’s the premise Asheard is built on — is the only way to see where each battle stands.

FAQ

Is AI visibility the same as GEO? AI visibility is the metric; GEO (Generative Engine Optimization) is the practice of improving it.

Can I check mine for free? Yes — the spot-check on our homepage shows a live AI answer for your brand and one question, free.