Share of Model vs Share of Voice: Two Ways to Slice AI Presence

As AI visibility vocabulary matures, you will hear both share of voice and, sometimes, share of model. They are related lenses on presence but slice it differently: one across a category, one within an engine. Knowing which a number refers to prevents comparing two things that only sound the same.

Two ways to frame your slice

Share of voice is your mentions as a proportion of all brand mentions in a defined category, across your prompt set. A share-of-model framing narrows the question to a single engine: of this engine's answers in your category, how often is it you? Both are proportions, but the denominator differs, and that changes what the number tells you.

Different denominators, different meaning

Whatever the label, the discipline is the same: disclose the denominator, or the number is not comparable.

Why the distinction is practical

Reading presence per engine catches a blackout that a blended, category-wide number would hide, while a category-wide view shows overall standing. Use both, and always know which denominator a figure uses. See share of voice and multi-platform aggregation.

The Searchestra view

Searchestra reports presence per engine and across a disclosed competitive set, so you can read both the category-wide and the per-engine slice without confusing one for the other.

Frequently asked questions