AEO vs GEO
Two acronyms, one workstream, and a difference that matters in exactly two places. Everything else about them is vocabulary.
AEO is about being the answer. GEO is about being named inside one. An answer engine extracts your text and often quotes it verbatim from a single page. A generative engine writes its own answer from several sources and may mention you. The work overlaps almost entirely, and buying them separately is the expensive mistake.
Side by side
Four of these six rows are vocabulary. The two marked below are the only ones where the distinction changes what you would actually do.
| AEO | GEO | |
|---|---|---|
| What the acronym stands for | Answer engine optimization. | Generative engine optimization. |
| Where the term came from | Marketing practice, gradually, alongside featured snippets and voice assistants. No single origin document. | A 2024 paper at KDD by Aggarwal, Murahari, Rajpurohit, Kalyan, Narasimhan and Deshpande. |
| The surface it describeschanges what you do | Anything that returns an answer rather than a list: featured snippets, voice results, assistants. | Systems that generate the answer rather than extracting it. |
| What being successful looks likechanges what you do | Your text is used as the answer, often verbatim and often attributed to one source. | Your brand is named or cited inside a synthesised answer built from several sources. |
| The measurement unitchanges what you do | Presence on a query, checkable and fairly stable. | A rate across a prompt set, per engine, because answers vary between runs. |
| The work it implies | Clean extractable passages, question shaped headings, valid schema. | The same, plus per crawler access, rendering, and third party corroboration. |
Where the difference genuinely bites
Measurement. An extractive answer is fairly stable: a featured snippet is present or it is not, and checking twice usually gives the same result. A generated answer varies between runs on an unchanged site, so it can only be reported honestly as a rate across a fixed prompt set, per engine, rerun on a cadence. Treating a generated answer like a snippet, and screenshotting it as proof, is the single most common error in this category.
Corroboration. Extractive answers take your words from your page, so your page is most of the battle. Generated answers are assembled from several sources, and most of what an assistant says about a company comes from pages that company does not own. That makes third party coverage a first order concern for GEO and a secondary one for AEO, and it is the part no tool sells.
Everything else, and it is the great majority of the work, is shared: allow the crawlers per agent, make sure the page exists before JavaScript runs, answer one question per section in a passage that can be lifted whole, keep the structured data matching the visible page, and carry a date a machine can read.
So which word should you use
Whichever your audience already uses, and be suspicious of anyone insisting the choice is important. We sell under both names because buyers search both, which is a fact about vocabulary rather than about two disciplines.
The one thing worth pushing back on is a proposal that scopes AEO and GEO as two engagements with two budgets. Ask what differs between the two scopes. If the answer is not "the measurement method and the weight on third party coverage", the answer is that nothing differs.
Also worth reading: LLM SEO, which is the third acronym in this family and describes the mechanism rather than the outcome, and the tools compared by job, which shows how much of this the software actually covers.
Questions people ask about AEO and GEO
What is the difference between AEO and GEO?
AEO is about being the answer, usually extracted from one page and often quoted verbatim, as with a featured snippet or a voice result. GEO is about being named inside an answer the engine generated from several sources. The practical difference is small: both need pages that can be reached, read and lifted from, and the work overlaps almost entirely.
Is AEO the same as GEO?
Not literally, but close enough that treating them as separate projects wastes money. GEO has a documented origin in a 2024 research paper and describes generated answers specifically. AEO is an older, looser term covering any answer surface including extractive ones. Most agencies use whichever word their buyer typed.
Should I do AEO or GEO?
Both, as one workstream, because roughly ninety percent of the work is identical: allow the crawlers, render without JavaScript, answer one question per section in a liftable passage, keep the schema honest and the dates real. Buying them as two engagements is the expensive mistake, and a vendor proposing that should be asked what differs between the two scopes.
Which term should I use?
Whichever your audience uses. Internally the distinction is only worth drawing when it changes a decision, which it does in two places: how you measure, since generated answers need a rate and extractive ones do not, and how much weight you put on third party corroboration, which matters far more for generated answers.
Is AEO dead now that AI answers everything?
No. Extractive answer surfaces did not disappear when generative ones arrived; featured snippets and voice results still run and still take one source verbatim. What changed is that they stopped being the only answer format worth optimising for, so AEO went from being the whole job to being part of it.
The shared ninety percent, measured on your site
Crawler access, rendering, structured data and quotability are the base both acronyms sit on. The free audit runs 36 checks across your live pages and scores all four. No card.