GEO vs AEO vs SEO: what each one actually means
The acronyms are multiplying faster than the ideas behind them. Here is the plain-English difference, how they overlap, and why you probably need all three.
Every few weeks a client forwards me an email from someone trying to sell them "GEO services" and asks, reasonably, whether it is real or just SEO with a new sticker on it. Fair question. The acronyms are multiplying faster than the ideas behind them, and the people selling them rarely stop to explain the difference. So here is the plain version, the one I give clients.
SEO gets you ranked in search results. AEO (answer engine optimisation) gets you into the direct answer boxes and featured snippets that sit above those results. GEO (generative engine optimisation) gets you mentioned and recommended inside AI assistants like ChatGPT, Claude and Gemini. They overlap heavily and share a foundation, but each optimises for a different way people now find answers.
Three names, one underlying shift
The reason these acronyms exist is that "search" stopped meaning one thing. Twenty years ago there was a search box and a list of links. Now a single buying decision might involve a Google search, a featured snippet read without clicking, and a question asked to ChatGPT, all before anyone visits a website. Each of those moments needs a slightly different optimisation, and the industry named them.
The mistake is treating them as three separate projects. They are three lenses on the same work: making your business the clearest, most credible answer to the questions your customers ask. Do that well and you tend to win on all three. Chase them as separate tactics and you waste money.
SEO: earning the ranking
This is the foundation and it has not gone away, no matter what the AI hype suggests. SEO is making sure that when someone searches, your page is one of the results Google considers worth showing. It is still about relevance, authority and a technically sound site. If your SEO is weak, the other two have nothing to build on, because both answer engines and generative engines lean on the same underlying signals about who is credible.
AEO: winning the answer, not just the link
AEO is about the moment Google answers the question directly: featured snippets, "people also ask" boxes, and AI Overviews. The user reads the answer and often never clicks. That sounds like a loss, but being the cited source in that answer is its own win. It puts your name above every traditional result.
Winning here is mechanical in a good way. Answer the question directly and early. Use clear structure. Match the way people actually phrase the question. The page that gets lifted into the answer box is usually the one that answered the question in the first forty to sixty words, then earned trust with depth underneath.
GEO: becoming the recommendation
GEO is the newest and the one people understand least. It is about being mentioned and recommended inside generative AI assistants. Unlike SEO and AEO, which both happen on a results page, GEO happens inside a conversation where there may be no page at all. The assistant says "you might consider X", and X is either you or a competitor.
GEO depends on the same foundations as the others, plus a heavy reliance on corroboration: reviews, directories, and consistent mentions across the web that let a model treat you as a stable, recommendable entity. I have written a full piece on the mechanics of getting recommended by ChatGPT, Claude and Gemini, because it deserves its own treatment.
- SEO decides whether you are in the running at all.
- AEO decides whether you win the answer above the results.
- GEO decides whether an AI recommends you when there are no results to win.
Which one should you focus on?
For almost every business I work with, the honest sequence is: get SEO solid, layer AEO onto your best commercial and informational pages, and build GEO foundations in parallel because it compounds slowly and the early movers in each niche tend to keep their position. You do not pick one. You sequence them, and the same content investment usually serves all three when it is done properly.
Common mistakes
Buying "GEO" that is just basic SEO rebadged. Ask the provider exactly what they will do differently for generative engines than for Google. If they cannot answer specifically, it is a sticker, not a service.
Abandoning SEO because "AI killed search". It did not. AI answers are built from the same web SEO improves. Weakening your foundation weakens everything above it.
Optimising for snippets with thin content. A direct answer with nothing credible underneath gets lifted once and dropped. Depth is what keeps you there.
Frequently asked questions.
What is the difference between GEO and SEO?
SEO optimises your pages to rank in traditional search results. GEO (generative engine optimisation) optimises your wider web presence so AI assistants like ChatGPT and Gemini mention and recommend your business. SEO competes for a ranking slot; GEO competes to be part of an AI-generated answer where there may be no results page at all.
Is AEO the same as featured snippet optimisation?
Largely, yes, with a wider scope. AEO (answer engine optimisation) covers featured snippets, 'people also ask' boxes and AI Overviews, anywhere a search engine answers the question directly rather than just listing links. The core technique is answering the question clearly and early, backed by credible depth.
Do I need all three, or can I pick one?
Most businesses need all three, sequenced rather than chosen between. SEO is the foundation both AEO and GEO build on, so it comes first. The good news is that one well-made piece of content, structured and corroborated properly, usually earns returns across all three at once.
Will GEO replace SEO?
No. Generative engines build their answers from the same web that SEO improves, so strong SEO feeds strong GEO. The channels are converging, not replacing each other. Treating them as one connected discipline, rather than a winner and a loser, is the right mental model.
