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Measurement · Citation & Visibility Measurement
Definition
Share of model is the percentage of relevant AI-generated responses in which a brand is mentioned or cited, relative to the total mentions or citations of all brands in that category — a competitive visibility metric that measures AI search market share rather than absolute citation volume.
Why It Matters for AI Search
Share of model is the AI search equivalent of share of voice in traditional media. A brand with a 40% share of model in its category appears in 4 out of every 10 relevant AI responses — while competitors split the remaining 60%. Share of model tracks competitive position over time: is the brand gaining or losing AI search market share relative to its competitive set? It is the metric that connects AI SEO investment to business competitive dynamics rather than just to absolute performance numbers.
Generative search ranking
Relevant Plate Lunch Collective Services
AI Search Visibility Assessment Context Map
