What share of voice means in AI search

Share of voice in AI search is the percentage of relevant AI answers in which your business gets named, measured against the competitors who could have been named instead. Where the older "share of answer" idea asks whether you appear in a single answer, share of voice zooms out to the whole competitive set across a body of buyer prompts and every major assistant — ChatGPT, Perplexity, Gemini, Claude, Copilot — giving you a single comparative number: of all the times AI could recommend a business like yours, how often is it you? It matters because AI answers are winner-take-few: the two or three names an assistant returns capture nearly all the intent, and everyone else is invisible. You grow share of voice the way you'd expect — stronger entity confirmation, more and better citations, machine-readable content that answers real buyer questions, and consistent presence in the sources assistants trust for your category — but you can only manage what you measure, which means tracking your named rate against competitors across a fixed prompt set over time.

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