What is AI visibility?

AI visibility is how often, how early and how kindly AI assistants bring up your brand when someone asks a question in your category. It is measured across many answers, because no two answers are quite the same.

Three things worth measuring

Presence. Out of the answers you sampled, how many named you? This is the core number and the hardest to fake.

Prominence. When you are named, are you the first recommendation or the fifth "also consider"? In a list-style answer, readers act on the top of the list.

Framing. Is the sentence around your name a recommendation, a neutral listing or a warning? A model repeating an old complaint about your pricing is visibility you don't want.

AI brand visibility vs LLM visibility

You'll see "AI search visibility", "AI brand visibility" and "LLM visibility" used for the same idea. The useful distinction is between two kinds of model:

  • Models answering from memory (a plain API call to GPT, Claude or Gemini). What they say reflects their training data, which has a cut-off date. Changing it is slow.
  • Models that search first (Perplexity, ChatGPT with search, Google's AI features). They fetch pages at question time, so what's on the web today can change the answer tomorrow.

A brand that shows up in search-first answers but not memory answers has a web presence the models haven't absorbed yet. The reverse usually means the brand was well known in the past but its current pages are hard to retrieve.

Why one check is never the answer

Language models pick each word with some randomness, so the same question can produce a different shortlist on the next run. The slider on the right makes that concrete. With small samples the swing is large enough to invent a trend that isn't there.

Your brand hasn't changed between Tuesday's run and Wednesday's; only the sample has. A fair parallel is the Moon: it never actually changes shape, only how much of its sunlit side faces us, which ahaboo walks through in a narrated explainer.

A measuring routine that holds up

  1. Write 10–20 unbranded prompts in your buyers' words and keep them fixed.
  2. Run them across several models, a few prompts at a time, over a week.
  3. Add up the totals: named in X of Y answers, per model.
  4. Compare month to month with the same prompt set. Change the prompts and you have started a new series.

The mention check saves each run in your browser and exports CSV, so you can build that series in a spreadsheet. The share of voice calculator turns the totals into shares with honest error ranges.

Try it: same brand, same prompts, six runs

Set how often a model "really" names a brand, and how many answers each check collects. Each row below is one simulated check.

Run 138%
Run 213%
Run 338%
Run 425%
Run 563%
Run 638%

Six checks of a brand that is really named 40% of the time came back anywhere from 13% to 63%.

From run 1 alone (3 of 8), the honest statement is "somewhere between 14% and 69%" (a 95% Wilson interval). Push the answers slider up and watch that range tighten.

Questions

What is AI visibility?
AI visibility is how often, how prominently and how favourably AI assistants such as ChatGPT, Claude, Gemini and Perplexity mention a brand when people ask questions in its category, especially questions that do not name the brand.
How is AI search visibility different from Google rankings?
A Google ranking is a position on a list of links that is fairly stable for a query. An AI answer is generated fresh each time, usually names a handful of options, and can change between runs. So AI visibility is measured as a rate across many answers, not as a single position.
How many prompts do I need to measure AI visibility?
More than most people think. With 8 answers, a brand that is really named 40% of the time can easily show anywhere from about 15% to 65%. Use a consistent prompt set, repeat it over several days, and compare the combined totals.
Can any tool tell me my true AI market share?
No public tool can see what real users ask or what they were shown. Tools can only sample model answers to prompts they choose. That is useful for tracking direction, but it is a sample, not a census.