what does share of voice mean in ai search?
Share of voice in AI search is the percentage of category citations your brand captures versus competitors across a defined query panel. If 100 prompts in your category cite domains 400 times total and your domain appears 60 times, your share of voice is 15 percent. Track it per engine since rankings differ across ChatGPT, Perplexity, Claude, Gemini, and Google AI Mode. Healthy category leaders capture 20 to 40 percent share of voice; under 5 percent signals invisibility despite possible strong organic rankings.
Evidence and detail
- Share of voice = (your citations / total citations in panel) per engine across a fixed query set.
- Category leaders capture 20 to 40 percent share of voice in their strongest engine across daily five-engine citation tracking.
- Engine-level decomposition reveals strengths: many brands score 30 points higher on one engine than another.
- Sub-5-percent share of voice signals AI invisibility regardless of classic organic ranking strength inside your category.
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