AI share of voice
AI share of voice explained
It is the only number in AI search that behaves like a marketing metric. Pick forty prompts a buyer would actually type, run them weekly on ChatGPT, Gemini, Perplexity and AI Overviews, and count appearances. Four hundred and forty checks a month gives you a stable trend instead of anecdotes.
Segment it. Brand prompts, meaning questions that name you, should approach full coverage quickly and are a hygiene measure. Category prompts, meaning questions that do not name you, are the competitive number and the one worth reporting to a board. Comparison prompts, where a buyer names you against a rival, are the ones closest to revenue.
Report it against three named competitors. A share number without a comparison set is decoration.
Problems this term shows up in
Service that owns this work: AI ImplementationAI Search Optimization
AI share of voice is the percentage of a fixed prompt set where a brand appears in the generated answer, measured across engines and compared against named competitors.
One definition is worth more than ten opinions
Every term here links to the service that owns the work and the tool that measures it.
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Three things you can test this week
None of these need a tool or a vendor. They take an afternoon and they tell you whether ai share of voice is actually your problem.
Our own measurement method, with its definitions and stated limits, is published on the method page.
The definition is the easy part
Knowing what a term means takes five minutes. Knowing whether it is your problem takes an afternoon, and knowing what to do about it takes a method.
Every glossary page here ends with three checks you can run yourself and the primary sources behind them, because a definition you cannot act on is trivia.
Primary sources
Primary documentation for the mechanics described on this page. All published by the organisations that operate the systems in question.
Twenty buying prompts, four engines, you against three named competitors. Report in one working day. No call needed.
AI share of voice: common questions
What is a good AI share of voice?
In most Indian D2C categories anything above thirty percent on category prompts puts a brand in the leading group today. That bar will rise.
How many prompts are enough?
Twenty is the minimum for a signal, forty is comfortable, beyond eighty the extra prompts rarely change the decision.
Should the prompt set change over time?
Keep a fixed core so the trend stays comparable, and add a small rotating set for new products and seasons.
See what the engines say about you
Twenty buying prompts, four engines, your brand against three named competitors. Report in one working day.
- 20 buying prompts, your category
- ChatGPT, Gemini, Perplexity, AI Overviews
- You against three named competitors
- Report in one working day, yours to keep