Share of Model

Share of Model measures the percentage of AI responses in which your brand is cited or mentioned compared to your competitors, across a set of target queries. It's the equivalent of "Share of Voice" in marketing, but applied to generative AI engines.

How to calculate Share of Model

You define a set of prompts representative of your audience's queries, generate responses on the main LLMs (ChatGPT, Google AI, Perplexity, Claude), and count each brand's appearances. The ratio gives your Share of Model vs competitors.

Why it's the key KPI for GEO

Share of Model is the most actionable GEO metric. It lets you measure the impact of your optimizations over time, identify narrative battles where you're falling behind, and prioritize actions. Our AI monitoring service tracks this metric monthly as part of the IDO methodology.