If you’ve been watching your AI visibility tracker the past six months, you’ve probably noticed the same thing I have: brands that get cited beside category leaders end up cited more — for queries they didn’t even target. That’s not luck. That’s the entity graph doing its job, and most operators are still pricing the implication in too slowly.
The old game was the link graph: who points to you, with what anchor text. The new game is the entity graph: who you’re mentioned beside, in what kind of source, in what shape of sentence. ChatGPT, Perplexity, Gemini, and Google AI Overviews all build internal representations of your brand from the company you keep across the training and retrieval corpus. Showing up alone on your own marketing pages doesn’t move the model’s picture of you. Showing up in a paragraph that already names two trusted category players does.
How the co-mention signal actually works
Embeddings don’t read your homepage and decide what you do. They look at every context you appear in across the corpus and cluster you with whatever you keep showing up next to. Two consequences follow.
First, when someone prompts ChatGPT or Perplexity with “what are the alternatives to [category leader],” the model surfaces brands whose embedding sits close to that leader’s — meaning brands consistently named in the same paragraph, the same comparison table, the same roundup post. Not the brands with the most backlinks. The brands with the most adjacency.
Second, the citation-share data lines up structurally. Roughly 47.9% of ChatGPT’s citations come from Wikipedia, and a comparable share comes from directory and listing sites — the exact surfaces where competitor sets get bundled into single paragraphs. When an LLM cites a “best CRM” listicle, it rarely cites the listicle’s pick #1 alone. It surfaces the whole comparison set. If you’re in the set, you’re in the answer.
The practitioner mistake
Most teams treat third-party placement as a generic citation-harvest play: “get on more roundups, get cited more.” That’s only half the lever. The other half is who you sit next to on those roundups. A “best SaaS tools 2026” mention beside fifteen brands nobody recognizes teaches the model nothing useful about you. A “alternatives to [category leader]” placement that names you, the leader, and two other recognized players teaches the model exactly what you are, instantly.
So the audit question isn’t “where can I get listed.” It’s “which adjacencies will define me in two years.”
What to do this week
Run the adjacency audit. Pick five prompts an ideal customer would actually type into ChatGPT, Perplexity, Gemini, and Google AI Overviews. Examples: “best [category] tools for [your ICP],” “alternatives to [category leader],” “[category leader] vs [smaller competitor],” “top [category] companies in 2026,” “cheaper alternatives to [category leader].” Note every brand that surfaces beside you — and every brand that surfaces instead of you. That’s your real positioning, not the one in your deck.
Target the right third-party placements. From that audit, identify the specific roundups, comparison pages, and review sites where your target adjacents already appear. Pitch yourself onto those. A spot on a list that bundles you with the right two competitors is worth ten spots on lists nobody mines.
Earn co-mention through original work. Get quoted in articles that name your target adjacents. Co-author a piece with a credible analyst. Take the podcast guest slot on a show that just had the category leader on. Each of those creates a co-occurrence record that the next training pass — and every retrieval-time index — absorbs.
Shape your own adjacency signal. Most brands write about themselves in isolation. Add an explicit “how we compare to [adjacent player]” section on your comparison page. Mention the two competitors you want to be associated with in your case-study language and your FAQ answers. You can move the needle on your own pages — competitors won’t object, and the entity graph will absorb the pattern.
Track citation share, not just citations. A citation alone is a vanity metric in the AI era. The number that matters is the percentage of “alternatives to X” answers that surface you in the set. If that share moves from 0% to 30% over a quarter, you’ve done the work. If it stays at 0% while your raw citation count climbs, you’re getting cited in the wrong neighborhoods.
Agencies: if your clients are starting to ask about AI SEO and you don’t have anyone in-house, Paris Roussos handles the work white-label — flat-rate, $500–$1,500/mo per end client, you keep the relationship. Email parisroussos@gmail.com for a sample audit.
The brands that win AI search over the next two years aren’t going to be the loudest — they’ll be the ones the model can place precisely on the map.