AI visibility
How often, how prominently, and in what light a brand, product or site appears in AI-generated answers across surfaces and regions. It is the AI-era counterpart of search visibility: instead of rank positions, the units are mentions inside answers, citations of your pages, position within the answer, and sentiment — all of which vary by surface, query phrasing and geography.
In AI Search API
One Envelope per surface × query × region is the measurement unit: evidence.mentions carries who was named, where and how; evidence.sources separates pages that were actually cited from ones merely retrieved; and absence-is-data guarantees that queries where you do not appear are recorded rather than dropped — absence is part of the visibility curve.
Related terms
See it in the product
Every definition here is enforced in the Envelope contract — run a capture and read the fields yourself.