Share of voice is a competitive-context metric: it puts your visibility number next to your competitors. In AI visibility terms, share of voice answers "of all the brands AI mentions in this category, what percentage are us?", a question that is more meaningful than raw mention counts because it captures market position.
AI visibility glossary
Share of voice
Share of voice is the proportion of category-level conversation, across search, social, AI answers, or media, that a brand owns relative to named competitors.