GEO, AEO and AI visibility explained
Search for "GEO" or "AEO" and the top result is often an academic paper from 2023, written for researchers, not for a person who runs a shop. Here is a plain, 2026 definition of all three terms, and an honest note on how much they actually differ.
If you have landed here from a search for one of these acronyms, you are not alone, and you are not missing something obvious. The plain-language explanation you were looking for genuinely has not existed until recently, because the terms themselves are new and the tools they describe are still changing.
A quick definition
- SEO (search engine optimisation) is being found in a search results list, the classic list of blue links.
- AEO (answer engine optimisation) is being the direct answer inside a box at the top of the results, the kind that quotes or paraphrases a page without a person clicking through.
- GEO (generative engine optimisation) is being mentioned when an AI assistant, like ChatGPT or Claude, writes a reply to someone's question.
All three describe the same underlying goal: a person asks a question, and your business is part of the answer. They differ mainly in where that answer appears.
SEO: being found
This is the oldest and best understood of the three. A person types a search, gets a list of pages, and clicks one. SEO is the practice of making your page match what people search for, and making sure search engines can read and trust it. Most of what has been true about SEO for years is still true: clear titles, real content, a site that works, and other sites that link to or mention you.
AEO: being the answer
An answer box pulls a short answer directly from a page and shows it above the normal results, so the person often never clicks through. AEO is about writing your page so an answer box can lift a clear, direct answer from it: state the question plainly, then answer it in the next sentence or two, before you go into more detail. One real, dated change worth knowing: Google retired its FAQ rich result in May 2026. FAQ markup on a page is still valid and does no harm, but it no longer earns a special search result of its own. Write clear questions and answers because they help a reader and a machine understand your page, not because the markup itself will win you a special box.
GEO: being mentioned
This is the newest of the three, and the reason for the confusion. When someone asks ChatGPT or Claude a question, the assistant writes an answer in its own words and may name a business inside it. GEO is the practice of making that mention more likely: being genuinely readable by the assistant's crawler, having clear factual content about what you do, and being mentioned by other pages the assistant may have learned from. A 2026 controlled study found no measurable citation uplift from structured data alone, so do not treat markup as a shortcut here either. The two things that matter are the same as elsewhere: can the assistant read your page at all, and does the page say something worth repeating.
Why the industry has not settled on the words
Search the term and you find disagreement. Some writers use GEO and AEO interchangeably. Some use AEO only for the older, structured answer-box format from search engines, and GEO only for generative AI assistants. There is no single, agreed authority who has settled this, and the terms keep moving as the tools that inspired them change. The larger AI tools and platforms have mostly stopped using either acronym in their own material and now say "AI visibility" instead, a broader, plainer phrase for the same underlying goal.
They overlap more than they differ
Do not spend much time deciding which label your work falls under. In practice, the three overlap far more than they differ: a page that is easy for a crawler to read, that states what you do in plain language, that answers real questions, and that other sites mention, tends to do well across a search results list, an answer box and an AI assistant's reply, all at once. The distinction between the three terms is real but small. Chasing the right label matters less than getting the basics right once. Our guide on why AI cannot find your website and our guide on whether your site is readable by ChatGPT both walk through those basics directly.