GEO, AEO and AI search without the hype. What generative engine optimisation really changes, what still wins, and how brands earn citations in AI answers.
Every year or two the search industry produces a new acronym and announces the death of the old one. The current pair is GEO, generative engine optimisation, and AEO, answer engine optimisation. Both describe how brands get found and cited by AI systems such as ChatGPT, Perplexity, Gemini and Google's AI results, and both are increasingly pitched as a replacement for SEO. Buyers deserve a straighter answer than either the hype or the dismissal, so here it is.
The terms, translated
GEO means optimising so generative systems retrieve, trust and cite your content when they compose an answer. AEO is its slightly older cousin, focused on being the direct answer to a question, with a lineage that runs from featured snippets and voice assistants through to today's AI results. You will also meet LLMO, AIO and whatever gets coined next quarter. Strip away the branding and every one of them describes the same commercial goal: when a buyer asks a machine a question, the answer includes you, by name, ideally with a link.
What actually changed
Three things, and they are real.
The answer replaced the results page. AI search composes a response and cites a handful of sources. Sitting at position four on a results page used to be a perfectly good business; being the unnamed sixth source behind a written answer is not. Visibility has become more concentrated, and the value of being quotable has gone up accordingly.
Queries fan out. When someone asks an assistant a question, the system quietly decomposes it into many searches, reads widely and weighs sources against each other before writing a word. Your content is now being read by a machine deciding whether you are worth quoting. That rewards pages that answer directly and carry visible expertise, and it punishes pages that circle a keyword without ever committing to an answer.
The click became optional. A growing share of buyers get what they need inside the answer itself, which changes how success is measured. Citations, brand mentions in AI responses and AI referral traffic now sit alongside rankings and sessions as the numbers that matter.
What did not change
The inputs. AI systems learn about brands from the same places search engines always have: your website, its structure, its structured data, and what credible third parties say about you. The strongest predictor of AI citations we see is the strength of the signals that were already driving rankings. A crawlable site, clean semantic structure, precise information about who you are and what you do, content written with genuine expertise, and authority earned rather than claimed.
That is why GEO is not a new discipline. It is SEO practised properly, with sharper requirements and a new surface to measure. The practical checklist, from structured data coverage to llms.txt and measuring AI referrals, is set out in our AI search optimisation guide.
How to tell substance from theatre
When an agency pitches GEO or AEO, ask what sits underneath the acronym. The credible answers are concrete: comprehensive structured data, machine-readable brand information, content architected around the real questions buyers ask, digital PR that earns third-party corroboration, and honest measurement of citations and AI referrals. If the pitch is a proprietary AI visibility score and a sense of urgency, you are being sold a rebrand of work you may already be paying for. That test applies to us as much as anyone, which is why our AI search optimisation service is described in deliverables rather than mystique.
Our position, plainly
We fold AI search into every SEO engagement rather than selling fear of the future as a separate line item, because the two are inseparable. The work is planned and judged the way we judge everything, through the CLEAR Method: agree what growth is worth, learn the market before acting in it, and measure the result in revenue rather than activity. And if your real question is where the next pound should go between channels, our thinking on SEO versus PPC applies unchanged: it is a sequencing decision, not a beauty contest.
The brands being cited by AI assistants today are, overwhelmingly, the brands that were already doing excellent search work. The acronyms will keep changing. The fundamentals keep compounding. If you would like a grounded read on how visible your brand currently is in AI answers, and what it would take to improve, speak to us.
