Share of Model — definition
Share of Model is the percentage of AI-generated answers within a specific market category that explicitly mention or cite a given brand relative to its competitors.
Expanded Explanation
Serving as the AI-era equivalent to traditional Share of Voice (SOV), Share of Model evaluates how dominating a brand's entity footprint is within LLM parametric memory and live RAG outputs.
Analogy & Mental Model
If a buyer asks ChatGPT ten different questions about CRM software and your product is recommended in seven of those answers, your Share of Model is 70%.
Why It Matters & Where It's Used
Brands with high Share of Model capture the vast majority of zero-click buyer intent before buyers ever consult a traditional search engine.
Concrete Real-World Application
A enterprise cybersecurity vendor measuring a 62% Share of Model across Perplexity enterprise buyer queries.
Share of Model vs Share of Voice
Share of Voice measures ad impressions or social mentions, while Share of Model measures direct brand recommendations inside AI model outputs.
How It Works & Key Components
Share of Model is benchmarked by testing prompt matrices across target evaluation categories.
1Category Matrix Definition
Mapping 50+ buyer evaluation queries ranging from top-of-funnel definitions to bottom-of-funnel feature comparisons.
2Multi-Engine Execution
Querying ChatGPT, Perplexity, Gemini, Copilot, and Claude in parallel.
3Share Ratio Calculation
Dividing your brand's total citations by total citations across all competitors.
Frequently Asked Questions
Q:How do you increase Share of Model?
Increase Share of Model by publishing original research, earning third-party review consensus, adding schema markup, and ensuring LLM crawlers can access your pages.
Get cited across ChatGPT, Perplexity & Gemini with citedby
Optimize your brand’s AI visibility score, track Share of Model across buyer prompts, and turn zero-click search into your highest-converting pipeline source.
Explore citedby Platform