What is your brand's share of voice in AI?
Share of Model is the metric that answers this question. Across all the questions your customers ask an AI, it's the proportion of mentions that go to your brand, versus your competitors. Periscop tracks it continuously, model by model.
Share of voice, the generative-AI version
Share of Model brings advertising's "share of voice" into the world of generative AI. The principle is simple: across a representative set of queries, you count the mentions of your brand, then divide by the total market mentions (you plus your competitors).
The number of AI answers that mention (or recommend) your brand.
Total market mentions: your brand plus every competitor cited.
A percentage: your share of voice in the AI's answers, comparable over time and across models.
Example: out of 100 questions asked to ChatGPT in your sector, your brand is cited 18 times and the whole market 120 times. Your Share of Model on ChatGPT is 15%.
How Periscop calculates it
Periscop produces the raw Share of Model data from real user searches, not artificial queries.
Business prompts
Periscop generates the questions your potential customers actually ask an AI, calibrated to your business and area.
6 AIs queried
These prompts are sent regularly to ChatGPT, Claude, Gemini, Perplexity, Mistral and Google AI Overviews.
Mentions counted
Every answer is analyzed: is your brand cited? Which competitors appear? Periscop derives your share, model by model.
One metric, three ways to read it
Share of Model is not a single number: it breaks down so you can steer your AI visibility precisely.
By model
Your share may be strong on Perplexity and weak on Gemini. You see exactly where to act.
Versus competitors
You position your brand against the market and spot who is gaining ground in AI answers.
Over time
Track how your share evolves at each measurement and check the effect of your actions.
Your Share of Model, continuously in your dashboard
Periscop shows your overall Share of Model and its breakdown by AI model, updated at each measurement. You turn a vague question, "does AI talk about us?", into a tracked, quantified indicator.
Discover your Share of Model
100 free credits on signup, enough to run your first measurements and get an initial score.
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