How Businesses Get Recommended by ChatGPT, Perplexity and Gemini: What GEO Actually Means
More people are asking ChatGPT, Perplexity, and Gemini to recommend businesses — including clinics, hospitals, and professional services. In 2026, roughly 45% of consumers said they use an AI tool for local business recommendations, up from 6% the year before. [BrightLocal 2026 Local Consumer Review Survey]
When a patient asks an AI "which clinic treats malaria in Ikeja?" or a business owner asks "who builds websites for hospitals in Lagos?", the AI writes an answer. It doesn't show a ranked list of ten links. It synthesizes a response from the information it can find — and most of the businesses that should be in that answer simply aren't.
This article explains how AI systems actually decide what to recommend, what businesses can control, what they can't, and how to make your information the kind an AI can find, understand, and cite. The practice of doing this deliberately is called Generative Engine Optimization, or GEO.
What GEO is (and is not)
Generative engine optimization is the practice of making your business's information easy for AI systems to find, understand, and cite when they generate answers. It emerged alongside AI search in 2023–2024, and the foundational research was published by Princeton, Georgia Tech, the Allen Institute for AI, and IIT Delhi (SIGKDD 2024).
GEO is not a trick. It is not a way to "rank in ChatGPT." Nobody — not us, not anyone — can guarantee that an AI system will recommend your business. AI systems change, their sources change, and their behavior differs from engine to engine. What GEO does is improve your odds by making sure the raw material AI systems need actually exists, is consistent, and is credible.
The honest version of the goal: when an AI system is asked to recommend a business like yours, the information it needs to say your name should be there, accurate, and well-supported. That is a portfolio game, not a single switch.
How AI systems decide what to recommend
AI answer engines work differently from Google. Google shows a ranked list of pages; AI systems write a synthesized paragraph, often with citations. That difference changes what you optimize.
Research comparing AI search to traditional search found two things worth knowing:
- AI systems favor earned media. They lean heavily on third-party, authoritative sources — directories, review platforms, news mentions, professional listings — over a business's own website and social media. [arXiv 2509.08919, 2025] This is the opposite of Google's more balanced mix. Your own website matters, but what others say about you matters more than it used to.
- The engines differ from each other. ChatGPT, Perplexity, and Gemini pull from different sources, weigh freshness differently, and respond differently to phrasing. There is no single "AI ranking" to optimize for. [arXiv 2509.08919, 2025]
There is also a broader shift underneath all of this: 69% of Google searches in 2025 ended without a click. [Search Engine Journal, 2025] People increasingly get their answer without visiting any website. If the answer is generated and your business isn't in it, you were invisible at the exact moment a customer was deciding.
What an AI system needs to recommend you
Strip away the jargon and an AI system needs four things to cite your business:
1. Consistent, complete business information. Your name, address, phone number, hours, services, and specialties must be identical everywhere — your website, your Google Business Profile, directories, review platforms, social profiles. Inconsistencies ("Dr. Bello's Clinic" here, "Bello Medical Centre" there) make it harder for any system, human or machine, to be confident you are one real business. This consistency is called NAP (name, address, phone) and it is the foundation of both local SEO and GEO.
2. Clear, quotable content. When an AI system looks at your website, it is looking for plain answers to direct questions. A page that says "We provide comprehensive multidisciplinary care in a patient-centered environment" gives an AI nothing to quote. A page that says "We treat malaria, typhoid, and childhood fevers. We are open Monday to Saturday, 8am to 8pm. We accept Hygeia, AXA Mansard, and Reliance HMO" gives it something specific, factual, and citable. Define what you do in plain sentences. Answer the questions patients actually ask, in the words they use.
3. Third-party evidence. Because AI systems favor earned media, your presence in sources AI trusts matters: your Google Business Profile, review platforms, professional directories, industry associations, local news mentions. Research on 129,000 domains found that businesses with profiles on major third-party platforms are roughly three times more likely to be cited by ChatGPT. [SE Ranking, Nov 2025] Reviews are part of this too — AI systems draw on them when recommending local businesses, which is one more reason a steady flow of recent reviews matters.
4. Freshness signals. AI systems favor current information. A website with visible, recent dates, updated service pages, and regular new content signals that your information reflects reality. A site that last changed in 2021 reads as a business that may have closed.
What you can control, and what you can't
You can control: your website's clarity and structure; the consistency of your name, address, and phone across every platform; your Google Business Profile completeness; your review flow; your presence in relevant directories; the accuracy of everything published about you.
You cannot control: whether any specific AI system mentions you in any specific answer. Engines change their models, their sources, and their policies. Anyone selling "guaranteed ChatGPT placement" is selling fiction. What you can do is make your business the obvious, well-documented answer — and then accept that AI visibility is probabilistic, like SEO, and manage it as a portfolio.
How GEO overlaps with SEO (and how it doesn't)
Most of what makes a business visible in AI answers is the same work that makes it visible in Google: clear content, consistent business information, reviews, authority, third-party mentions. SEO and GEO share nearly all their inputs.
The differences are matters of emphasis:
| | SEO | GEO |
|---|---|---|
| Goal | Rank in search results | Be cited in generated answers |
| Primary audience | Google's crawler | AI systems + the humans reading their answers |
| Key inputs | Keywords, links, technical health | Quotable answers, entity clarity, consistency, earned media |
| Certainty | Probabilistic | More probabilistic |
| Measurement | Rankings, clicks, Search Console | AI-mention monitoring (asking the engines what they say about you) |
The practical takeaway: do the SEO work well and you are most of the way to GEO. Then add the GEO layer — quotable definitions, consistent entity information, third-party presence, freshness — and monitor what the engines actually say about you, because you cannot manage what you don't measure.
What this means for a clinic or hospital
For healthcare businesses the stakes are specific. Patients increasingly ask AI systems for recommendations — "which clinic treats malaria on a Sunday?", "best dentist near me for a child", "where can I get a malaria test in Yaba?" — and the AI answer becomes the shortlist.
The same fundamentals apply, with a healthcare twist: consistency across your profile and site, service pages that answer patient questions in plain language, real reviews, and accurate HMO/insurance information. And because healthcare is a trust business, the third-party evidence layer matters even more — medical directories, professional associations, and genuine patient reviews carry weight with both humans and AI systems. (One caution: do not publish content designed to game AI systems, and do not let marketing content make medical claims. The information an AI cites about your clinic should be accurate enough that you'd be happy for a patient to act on it.)
What is GEO?
Generative Engine Optimization is the practice of making your business's information easy for AI systems to find, understand, and cite when they generate answers in ChatGPT, Perplexity, Gemini, and similar tools.
Can I guarantee my business appears in ChatGPT answers?
No. No one can guarantee AI inclusion — engines change their sources and models. GEO improves your odds by making your information consistent, quotable, and well-supported by third-party sources.
How is GEO different from SEO?
SEO optimizes for ranking in search results; GEO optimizes for being cited in generated answers. They share most inputs — clear content, consistent business info, reviews, authority — but GEO adds quotable definitions, entity clarity, and earned-media presence.
How do AI systems find businesses?
They draw on your website, your Google Business Profile, directories, review platforms, and third-party mentions — and research shows they lean on third-party sources more than Google does.
Does my business need GEO now?
If customers ask AI tools for recommendations in your category, yes — start with the fundamentals: consistent NAP everywhere, clear service pages that answer real questions, recent reviews, and presence in the directories your industry trusts.
How do I know if AI systems mention my business?
Ask them. Run your key questions through ChatGPT, Perplexity, and Gemini in an incognito session and see whether your business appears, and how it's described. Do this monthly — it's the cheapest AI-visibility monitoring there is.
What to do next
Start by asking the engines what they say about you: run your five most important customer questions through ChatGPT, Perplexity, and Gemini and note whether your business appears. Then fix the fundamentals — consistent business information, quotable service pages, reviews — because they feed both Google and every AI system. If you'd like help preparing your website for AI-mediated discovery, talk to FJMK about your website — we'll audit what the engines currently say about you and what needs to change.