Foundations
Share of Voice (AI)(AI SOV)
Your slice of AI-answer visibility for a topic, measured against competitors.
AI share of voice is the percentage of AI answers, across a defined set of buyer questions, where your brand is named or cited compared with your named competitors. If the engines name you in 12 of 50 tracked prompts and your competitor set takes the other 38, your AI share of voice is 24%. It is the competitive counterpart to AI visibility rate, which measures you against your own opportunity rather than against rivals.
Share of voice is the right metric for positioning and displacement work: it tells you whether you are gaining ground on a specific competitor in the answers buyers actually see. Measured over time, it shows momentum that a single-engine citation count would miss.
To measure it, fix a prompt set and a competitor set, run the prompts across engines repeatedly, and count how the named slots split between you and the competitors.
Related terms
AI Visibility Rate
The share of applicable buyer queries where an AI engine names or cites you.
Citation Share
Your slice of all the citations AI answers hand out for a topic.
AI Visibility
How present a brand is across AI answers — mentions and citations, not rankings.
Prompt Visibility Tracking
Repeatedly querying AI engines with a fixed prompt set to measure how often your brand appears.
AI Brand Mention
Any reference to a brand inside an AI answer, whether or not it is linked.
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