GEO stands for generative engine optimisation. It is the practice of making sure your brand, product or content is what AI answer engines find, trust and cite when someone asks a question you should own.
It goes by a second name, AEO, for answer engine optimisation, and the two terms describe the same shift. Search is moving from lists of links to written answers, and GEO is the discipline of being visible inside those answers.
Why answers changed the game
In classic search, visibility meant ranking. A user saw ten blue links, and being third still earned clicks. In an AI answer, the engine reads the sources itself and writes one reply, so most brands are not ranked lower; they are simply absent.
The engines are also becoming choosier about what they surface. Google has been linking higher and more prominently inside AI Overviews and AI Mode, which makes the citations that do appear more valuable, and the competition to earn them more direct.
What GEO work actually involves
The foundation is being findable and quotable. Engines favour content that answers specific questions clearly, carries original data or expertise, and is structured so passages can be lifted without confusion. Thin pages written for keywords give the models nothing to cite.
The second layer is authority beyond your own site. AI models build their picture of a brand from reviews, comparison sites, community discussions, news coverage and directories. GEO therefore looks as much like digital PR and reputation work as it does like traditional on-page optimisation.
The third layer is measurement. Because an answer is generated, visibility is probabilistic: the same prompt can cite you today and a rival tomorrow. GEO programmes track panels of prompts over time, watching citation share, position within answers and sentiment, rather than a single fixed ranking.
An industry forming in real time
The money confirms this is not a conference buzzword. Profound, the best-known AI visibility platform, raised a $96 million Series C at a $1 billion valuation in February 2026, and Adobe agreed to acquire Semrush for about $1.9 billion in a deal that closed in April 2026, largely to own AI-search visibility tooling.
Monetisation is arriving inside the answers too, with Google testing ads in AI Mode for some users. When answers carry ads and citations carry customers, being the brand the engine trusts stops being a branding exercise.
GEO is not a trick, and not just SEO with a new hat
Because GEO grew out of SEO, it inherited some of SEO’s worst temptations. There is no prompt you can stuff and no hidden tag that forces a model to cite you. Engines re-derive their answers from the open web, and they are getting better at discounting content written purely to be lifted into answers.
What works is closer to old-fashioned authority building. Publish the clearest explanation, the original dataset, the honest comparison. Earn coverage in the publications and communities your buyers trust. Keep your facts consistent everywhere your brand is described, because the model is averaging all of it.
There is a technical layer too, familiar to anyone from SEO: make sure the major engines’ crawlers can read your site, keep pages fast and structured, and do not hide your best material behind scripts or gates the retrieval systems cannot pass. If the engine cannot fetch it, it cannot cite it.
Costs are following the familiar curve. Early GEO work was done by SEO teams as a side project; it now supports dedicated agencies, in-house roles and a software market whose leading platform is valued at a billion dollars. Budget follows attention, and attention has moved into the answer box.
The discipline is young enough that its vocabulary is still contested, with GEO, AEO and a half-dozen other acronyms competing for the same budget line. The name will settle. The underlying question, “when the machine answers, does it answer with us?”, is now permanent.
A useful starting exercise costs nothing: ask the engines the questions your customers ask, and read what comes back with a stranger’s eyes. Most brands are startled by the gap between what they believe about themselves and what the answer says. Closing that gap is, in the end, the entire job.
The shortest definition is the practical one: SEO won the click, GEO wins the mention. Brands that learn to earn both will be the ones the answers keep recommending.
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