AI Share of Voice: How to Measure It and Why It Matters
A visibility score tells you if you show up. Share of voice tells you whether you're winning the category — relative to the competitors named beside you.
What AI share of voice is
AI share of voice is the proportion of brand mentions in AI answers that go to you, versus all the brands named for the same questions. If across your buyer questions you're named 4 times and competitors are named 16 times, your share of voice is 20%.
Why it beats a raw score
A visibility score of '30%' sounds bad in isolation — but if the category leader only hits 35%, you're competitive. Share of voice normalizes for how crowded and how 'AI-answerable' your category is, so you're measuring position, not just presence.
How to act on it
- Identify which competitors dominate share of voice and on which questions.
- Study where they're cited that you aren't — those sources are your targets.
- Track share of voice monthly; it's the cleanest signal that your AEO work is compounding.
FAQ
How is AI share of voice calculated?
Your brand mentions divided by the total brand mentions (yours + all competitors') across a fixed set of buyer-intent questions, expressed as a percentage.
What's a good AI share of voice?
It's relative to your category. Compare against the leader: closing the gap to the top-named competitor matters more than any absolute number.