Ai Search
Share of Model
Share of Model is the percentage of AI-generated responses in which a brand is mentioned or recommended across a defined set of queries. It's the AI search equivalent of Share of Voice — measuring how prominently your brand features in the AI answer ecosystem.
Why Share of Model Matters for SEO
As AI search grows, Share of Model becomes a primary brand visibility metric alongside traditional rankings. Brands with high Share of Model are being recommended and evaluated by AI systems at scale. It identifies which competitors are winning AI visibility and where you can close gaps.
How Share of Model Works
Define a target query set relevant to your category. Test each query across key AI platforms: ChatGPT, Gemini, Perplexity, Copilot. Track frequency of brand mentions across the set to establish your baseline. Tools like Peec.ai are emerging to automate this tracking.
Common Mistakes
- Not tracking Share of Model at all — you can't improve what you don't measure
- Only checking one AI platform instead of testing across the full ecosystem
- Not benchmarking against competitors to understand relative AI visibility
Want to go deeper?
Read the full guide: AI Visibility Optimization →