ERM Advisory · Framework

AI VisibilityVendor SelectionGTM StrategyAEO

AI Visibility
Architecture

Your buyers are building their vendor shortlist inside AI before they ever contact sales. If the models that now mediate B2B research cannot find you, you lose influence before the first conversation. The AI Visibility Architecture is the four-layer system for becoming the vendor AI recommends.

AI Visibility leads to AI Recommendation, measured as Share of Model The four-layer AI Visibility Architecture (Entity Foundation, Citable Substance, Corroboration Network, Machine Legibility) creates AI Visibility. AI Visibility produces AI Recommendation inside engines such as ChatGPT, Google AI Overviews, Perplexity, and Gemini. AI Recommendation is measured as Share of Model, the business metric. ERM Advisory, Erik R. Miller. THE AI VISIBILITY ARCHITECTURE AI Visibility → AI Recommendation → Share of Model LAYER 4Machine Legibility LAYER 3Corroboration Network LAYER 2Citable Substance LAYER 1Entity Foundation = AI VISIBILITY AI RECOMMENDATION Engines recommend you to the buyer, before sales ChatGPT · AI Overviews Perplexity · Gemini THE BUSINESS METRIC Share of Model Your share of AI recommendations Four layers compound. A weak Entity Foundation caps everything built above it. ERM ADVISORY · AI VISIBILITY ARCHITECTURE · ERIK R. MILLER
The AI Visibility Architecture — how four layers become AI Visibility, then AI Recommendation, measured as Share of Model · ERM Advisory · Erik R. Miller

The Business Problem

Why AI Recommends Your Competitors, Not You

Executives are asking a new set of questions. Why are competitors being recommended inside ChatGPT and Gemini? Why do buyers arrive with a shortlist already built? Why are we losing influence before sales ever engages? The answer is the same in every case: B2B buyers now research and shortlist vendors inside AI, and the systems doing the recommending do not yet know you. Forrester's Buyers' Journey Survey (2025) found that more B2B buyers name generative AI as their most meaningful source of information than any other channel.

This is the supply-side response to the AI Buying Committee Framework, which maps how buyers delegate research and evaluation to AI. The AI Visibility Architecture, developed by Erik R. Miller at ERM Advisory, is the operating model for influencing that moment. It organizes the work into four layers that compound: each one is necessary, none is sufficient alone. Answer Engine Optimization is the mechanism. Becoming the vendor AI recommends is the goal.

The framework exists to close a specific problem: the AI Visibility Gap, the distance between the demand a company has earned with human buyers and the recommendations it earns from AI engines. The two are produced by different mechanisms, which is why strong brands are so often missing from the answer.

"You can be well known to people and nearly invisible to models. The AI Visibility Architecture is the system for closing that gap."

The Four Layers

Entity, Substance, Corroboration, Legibility

Layer 1 — Entity Foundation. Before a model can recommend you, it must know what you are with confidence. Become an unambiguous, consistent entity across your site, LinkedIn, review profiles, and reference databases, with a named, credible author behind your content. Everything above this layer inherits its strength.

Layer 2 — Citable Substance. The content a model wants to extract: original point of view, clear definitions, real data, and direct comparisons that answer the questions buyers actually ask. The test is simple: can a model lift one paragraph and use it as a complete, accurate answer? Distinct intellectual property, such as a named framework or proprietary benchmark, is the most durable advantage you can hold in AI recommendation.

Layer 3 — Corroboration Network. The independent sources that say what you say about yourself: reviews, analyst and press mentions, customer stories, and the communities where practitioners compare notes. Engines weight consensus heavily because it lowers their risk of being wrong. You cannot publish your way here. You earn it.

Layer 4 — Machine Legibility. The technical work that lets a machine read and trust your content: structured data and schema, clean semantic HTML, question-shaped headings, FAQ and HowTo markup, and fast, crawlable, current pages. Necessary, but the most over-weighted layer. Schema on a page with no substance is a clean label on an empty jar.

The engines named here, such as ChatGPT, Google AI Overviews, Perplexity, and Gemini, are examples, not the framework. The specific tools will change. The four layers describe how any system that reads, corroborates, and parses the web decides what to recommend, which is why the model outlasts the vendors.

The ERM Advisory AI Operating System

Three Frameworks, One System

The AI Visibility Architecture is one half of a connected system for the AI-mediated buying journey. The AI Buying Committee Framework explains the demand side: how buyers now delegate research and evaluation to AI. This framework is the supply side: how vendors become visible, citable, and recommendable in that process. Share of Model is how you measure it. Together they form the ERM Advisory AI Operating System.

That system connects to the wider library. It treats buyer behavior as intelligence, in the spirit of the Signal-Centric ABM Operating Model; it depends on disciplined delivery, the subject of the Marketing Execution Gap Framework and the Revenue Execution Gap; and it is operationalized within the ERM Revenue Execution System. Visibility that never reaches the buying group is wasted, which is why recommendation is the beginning of the work, not the end.

The Shift

From Ranking to Recommendation

When buyers researched in a search engine, you competed for a ranking and a click. When buyers research in AI, you compete to be recommended. Answer Engine Optimization is the mechanism, but the contest itself has changed, from position to recommendation. The demand you create only converts if the model names you when the buyer asks.

Traditional Search vs AI-Mediated Buying
Traditional SearchAI Search
ClicksAnswers
RankingsCitations
Share of VoiceShare of Model
SERP positionAI recommendation
TrafficRecommendation presence

The Metric

Share of Model

At ERM Advisory, we use a metric called Share of Model to measure how frequently AI systems cite, recommend, and accurately describe a company across a defined set of buyer questions. It is the answer-engine-era successor to share of voice.

Measure it by assembling a fixed set of the questions your buyers actually ask, running them across the major engines on a cadence, and tracking three things: citation frequency, description accuracy, and assisted pipeline from AI-shaped research. Together they tell you whether your AI visibility is translating into qualified demand. You can baseline it today with the AI Visibility Scorecard.

Forthcoming: Share of Model will be expanded into its own framework covering buyer-question selection, citation and recommendation tracking, description accuracy, reporting cadence, and executive dashboards. It is an emerging ERM Advisory measurement standard.

Ownership

Who Owns AI Visibility

AI visibility sits at the intersection of content, product marketing, PR, SEO, customer advocacy, and revenue operations. That is precisely why it stalls: when it belongs to everyone, it belongs to no one. It needs a single accountable owner, usually in marketing, with authority to coordinate owned, earned, and technical work, and a seat in the revenue operating rhythm.

"Schema on a page with no substance is a clean label on an empty jar. The foundation and the substance do the heavy lifting."

Summary

Key Takeaways

01

The AI Visibility Gap is the distance between demand earned with humans and citations earned from machines. Closing it is now a revenue function.

02

Four layers compound: Entity Foundation and Citable Substance do the heavy lifting, Corroboration earns trust, and Machine Legibility makes it readable.

03

Manage it with Share of Model: citation frequency, description accuracy, and assisted pipeline, owned by one accountable leader.

Frequently Asked Questions

Common Questions

What is the AI Visibility Architecture?
The AI Visibility Architecture is a four-layer framework from ERM Advisory for Answer Engine Optimization in B2B: Entity Foundation, Citable Substance, Corroboration Network, and Machine Legibility. Together they make a company legible, credible, and citable to AI systems such as ChatGPT, Google AI Overviews, Perplexity, and Gemini, so it appears on the vendor shortlist AI assembles before a buyer contacts sales.
What is the AI Visibility Gap?
The AI Visibility Gap is the distance between the demand a company has earned with human buyers and the citations it earns from AI engines. A brand can be well known to people yet nearly invisible to the models that now build vendor shortlists. The AI Visibility Architecture is the system for closing that gap.
What is Share of Model?
Share of Model is a metric developed at ERM Advisory that measures how frequently AI systems cite, recommend, and accurately describe a company across a defined set of buyer questions. It is the answer-engine-era successor to share of voice.

Research & Supporting Evidence

The Evidence

The AI Visibility Architecture, the AI Visibility Gap, and Share of Model are original to ERM Advisory. The market context is drawn from primary research.

  • Forrester, Buyers' Journey Survey (2025) — more B2B buyers name generative AI as their most meaningful source of information than any other channel.
  • Gartner (2025 to 2026) — 45% of B2B buyers used AI during a recent purchase; most still validate AI insights with a human seller.
  • McKinsey, B2B Pulse (2024) — buyers now use roughly ten interaction channels across the buying journey.
  • Google (2025) — AI Overviews and AI Mode each reached billion-plus user scale, moving AI answers to the center of search.

Topic Cluster

Referenced In

This framework is the canonical source for the AI Visibility Architecture, the AI Visibility Gap, and Share of Model. It is referenced in the following ERM Advisory publications.

About the Author

Erik R. Miller

Marketing leader, builder, and operator with 15+ years building revenue marketing functions across four continents. Erik has designed ABM programs, demand generation systems, and GTM architectures for companies ranging from early-stage startups to $10B+ enterprises. The frameworks here are drawn directly from that operational experience.

Learn More About Erik →