Measuring share of voice in ChatGPT and Perplexity
Short answer
AI share of voice measures how often and how prominently you appear in answers — across a fixed set of real prompts, tested on a schedule.
- Define a fixed set of buying-intent prompts.
- Log mention, prominence and tone.
- Compare over time and against competitors.
AI answers have no “position 3.” Visibility is still measurable, though — through a metric of its own: AI share of voice.
A fixed prompt set
Start with the questions your customers actually ask, with buying intent. This set stays constant so you can compare over time.
What you log
For each prompt and platform, capture three things:
- are you mentioned?
- how prominently (first, middle, footnote)?
- in what tone and with which facts?
Aggregated, that gives a reliable curve — and the competitor comparison that makes priorities obvious.
Frequently asked questions
Why isn't classic rank tracking enough?
AI answers have no stable positions. You need a metric for mentions and prominence, not ranks.
How often should I measure?
Regularly and with the same prompt set, so changes stay comparable — weekly or monthly, depending on your industry's pace.


