Mention rate
Mention rate is the share of AI answers, across a set of prompts, that mention your brand at all.
Example
You run 40 buyer prompts on one AI engine and your brand is named in 10 of the answers. Your mention rate on that engine is 10 out of 40, or 25%.
How it differs from share of voice
Mention rate counts presence: did the answer name you or not. AI share of voice is relative: of all the brand mentions in the answers, how many were yours. A brand can have a high mention rate and a modest share of voice in a crowded category where every answer lists many names.
How it is measured
Keep the prompt set and engines fixed, run the prompts repeatedly, and divide the answers that name your brand by the total answers. Because answers vary, a rate over several days is more reliable than a single run.
How Stellarcast handles it
Stellarcast reports mention rate as Visibility rate: the share of answers that mention your brand, per market, with its P25-P75 range.
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