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What is AI Share of Voice?

AI Share of Voice is how much of your category's AI attention you capture when buyers ask AI assistants for a recommendation. Where AI Visibility is your absolute standing, AI Share of Voice is the competitive, zero-sum view — your slice of every recommendation AI gives in your category.

Why AI Share of Voice matters

An AI assistant rarely lists every vendor — it names a handful. That makes the category a zero-sum game: every recommendation that goes to a competitor is one that didn't go to you. Tracking AI Share of Voice tells you not just whether your visibility is rising, but whether you're winning the conversation relative to the brands you compete with.

How AI Share of Voice is calculated

Surfora runs real buyer-intent prompts across ChatGPT, Claude, Gemini and Perplexity and records which companies are named and in what position. Each mention is weighted by prominence, then your AI Share of Voice is your weighted mentions divided by the total weighted mentions for all companies in the category. A share of 20% means one in five weighted AI mentions in that category point to you. Read the full methodology for the exact formula.

AI Share of Voice vs AI Visibility

AI Visibility answers "how strongly does AI recommend me?" AI Share of Voice answers "how much of the category am I winning?" You can hold a high AI Visibility Score and still be losing share if competitors are gaining faster — which is why Surfora tracks both from the same real responses.

How to grow your AI Share of Voice

Because share is zero-sum, growing it means being named where competitors currently are — in the comparison content, category pages, reviews and documentation AI assistants synthesize. Surfora's audits identify exactly where competitors out-appear you, and our content programs close that gap. See your category's share breakdown with a free snapshot.

What is AI Visibility?AI Visibility vs Traditional SEOMethodology