GEO vs SEO in 2026: what actually changes, measured
The short answer
SEO earns a position in a list of links. GEO earns a mention inside an answer that replaces the list. They share most of the same underlying work, and they diverge on one thing: an AI answer names three or four sources, not ten, and the page it names is usually not the page you optimised.
AEO, GEO and “LLM SEO” are largely the same discipline under three names. Below is what we measured, why the vocabulary matters less than the vendors selling it suggest, and how to tell whether any of it applies to you.
The three terms, briefly
- SEO aims at the ranked list of blue links.
- AEO, answer engine optimization, aims at being the source an answer quotes.
- GEO, generative engine optimization, is the same aim across generative systems: ChatGPT, Perplexity, Google’s AI Overviews and AI Mode, Gemini, Copilot.
Treat AEO and GEO as synonyms in practice. Anyone charging you separately for both should explain what differs, in deliverables, not in definitions.
What we measured
Rather than reason from principles, we ran the queries. This is from our own market, Bulgaria, in August 2026, and the mechanism generalises even where the language does not.
Finding 1: AI answers cite pages that answer one question. Not service pages. Not homepages. Across the queries we checked in our category, service pages earned roughly one mention, and only when someone searched the brand name directly.
Finding 2: the cited pages shared four traits. A labelled short answer in the first paragraph, which the AI often lifts nearly verbatim. Real numbers, broken out by type. The year in the title. And one page per question, rather than one page with a section per question.
Finding 3: the most-cited domain in our category was a one-person studio. Not the largest agency, not the oldest, not the one with the most backlinks. It had 22 referring domains and roughly two blog posts doing the work. That is the part worth internalising: in a young category, citation is not gated by authority the way ranking is.
Finding 4: AI answers will invent what nobody publishes. Asked what GEO costs in our market, Google’s AI returned a confident price table and cited three sources, none of which publishes a price. The number was reconstructed from nothing. If your category has an unanswered commercial question, the answer is currently being made up, and whoever publishes real figures first tends to become the source.
What is genuinely different
Four practical differences, in the order they matter.
1. The winner set is three, not ten
A ranked page at position 8 still gets some traffic. A source that is not among the three or four an answer cites gets nothing from that answer. The distribution is harsher, which cuts both ways: harder to place, and much better when you do.
2. Clicks fall even when you win
Published measurements of click-through after AI answers appear are consistently negative: one study of 300,000 keywords reported around a 34.5% drop, another across millions of queries reported a fall from roughly 1.76% to 0.61%. Independent survey work has found users click a result on roughly 8% of searches with an AI summary against roughly 15% without.
Plan for it: a citation is worth less traffic than the equivalent ranking, and worth more trust. Being named as the source of an answer someone already believes is a different kind of asset from being link number four.
3. Structure beats volume
Long, comprehensive pages rank. Short, direct, well-labelled passages get quoted. If you write one page covering nine questions, you have made something a ranking algorithm likes and an answer engine struggles to lift a clean passage from.
4. There is no submission, and no guarantee
No one can promise you a citation. These systems change without notice and take no requests. Any vendor who guarantees inclusion in an AI answer is selling something they do not control. What can be promised is measurement: where you appear today, who appears instead of you, which pages cause it, and what moves month to month.
What is the same, and it is most of it
The honest part most GEO pitches leave out: the majority of the work is work you already knew about.
- A crawlable, fast, technically sound site. An answer engine cannot cite what it cannot fetch.
- Clear entity identity: who you are, what you do, where you operate, stated consistently.
- Structured data, so machines read your facts as facts rather than as prose.
- Genuine expertise on the page, with specifics that cannot be paraphrased from a competitor.
- Being mentioned elsewhere by name, since models weight what the wider web says about you.
If your site fails those, GEO is not your problem yet. Someone selling you a GEO retainer before fixing them is selling you the roof before the walls.
Should you pay for it
Three honest cases.
Yes, probably. You sell something people research before buying, your customers have started saying “I asked ChatGPT”, and your category already shows AI answers on its main commercial queries.
Not yet. Your site has technical problems, thin pages, or no clear description of what you do and where. Fix those first; they are the same work either way.
Almost certainly not. Your demand is local, walk-in, or referral-driven, and nobody researches your category in an assistant. Plenty of good businesses are in this position and are being sold GEO anyway.
The way to find out which one you are is to measure, not to buy a retainer and hope.
What measurement should tell you
A useful baseline answers four questions:
- For the questions your buyers actually ask, are you named at all?
- When you are not, who is, and why that page?
- Are the assistants able to fetch and read your site in the first place?
- Which specific pages would have to change, in priority order?
If a proposal cannot show you 1 and 2 before you sign, it is asking you to buy an outcome nobody has established you lack.
Where to start
We built the measurement into a fixed-price report because the first step should not require a sales call.
If you would rather see something before paying anything, the free AI visibility check returns a short review by email.
The Visibility Report is €50, one payment. It crawls up to 50 pages, checks whether ChatGPT, Perplexity and Google’s AI answers name you or a competitor, and returns a prioritised plan. It arrives by email, and it is the same measurement we would run before quoting anything larger.
See pricing and order the report
Figures on click-through are from published third-party studies and are cited as ranges rather than single values, because the studies measure different query sets. Our own findings are from queries we ran in the Bulgarian market in August 2026 and are described as such.