What is AI visibility score?
Also called: AI visibility, LLM visibility score
Definition
An AI visibility score is the percentage of AI-generated answers, across a defined set of buyer prompts and AI engines, that mention your brand. A score of 40% means your brand was named in four out of every ten answers.
Explained
The score is only meaningful relative to the prompts behind it. Branded prompts ("Acme vs Globex") almost always mention you, so a score built mostly from them looks inflated. Unbranded category prompts ("best invoicing tool for freelancers") are the honest test.
Read it alongside average position, competitor share of voice and the sources the engines cite. Because AI answers vary between runs, judge a trend over several runs rather than one number.
Example
A brand runs 5 prompts on 3 engines, which gives 15 answers. It is mentioned in 6 of them, so its AI visibility score is 40%. Gemini mentions it 4 times out of 5 and ChatGPT once, which shows where to focus.