Traditional SEO agencies are losing clients who understand that Google AI Mode and ChatGPT Shopping are now the first touchpoint in the e-commerce buyer journey. The agencies that survive are those who can quantify — and grow — their clients' presence in AI-generated answers.
This playbook gives you the exact pitch script, pricing model, deliverable stack, and metrics to close and retain GEO clients in the e-commerce vertical.
The 3 Core GEO Concepts to Master Before Your Pitch
1. Share of Model (SoM)
Share of Model is the GEO equivalent of market share. It answers: "When someone asks ChatGPT, Perplexity, or Claude about [product category], what percentage of the time does your brand get recommended?"
Track SoM by running 100–500 representative queries per month across ChatGPT Search, Perplexity Pro, Claude 3.7, and Google AI Overviews. Record citation frequency per brand. Report the delta month-over-month. Use Optymia's multi-engine tracker to automate this at scale.
?? Sample SoM Report Format
| AI Engine | Brand Mentions | SoM % |
|---|---|---|
| ChatGPT Search | 34/100 | 34% |
| Perplexity Pro | 28/100 | 28% |
| Google AI Overviews | 41/100 | 41% |
| Claude 3.7 | 19/100 | 19% |
2. Product Schema Injection
AI engines use structured data to understand product inventories. Without Product, Offer, and Review schemas, your client's products are invisible to ChatGPT Shopping queries and Perplexity product comparisons.
? Minimum Viable Product Schema
{
"@context": "https://schema.org",
"@type": "Product",
"name": "Product Name",
"description": "Short, entity-dense product description.",
"brand": { "@type": "Brand", "name": "YourBrand" },
"offers": {
"@type": "Offer",
"price": "49.99",
"priceCurrency": "USD",
"availability": "https://schema.org/InStock",
"url": "https://yourstore.com/product"
},
"aggregateRating": {
"@type": "AggregateRating",
"ratingValue": "4.8",
"reviewCount": "243"
}
}3. Citation Velocity
Citation velocity measures the rate of growth in how frequently third-party sources — review sites, forums, comparison pages — mention your brand in AI-indexed content. The higher your citation velocity, the more AI engines treat your brand as an authoritative, trustworthy entity.
Your GEO retainer should include a monthly outreach component targeting Trustpilot, G2, Capterra (for SaaS), or product review bloggers (for e-commerce) to continuously expand the citation base.