SEO earns a position in a list of results. AEO earns your content a place inside an answer. GEO earns your business a mention when a system writes a recommendation from scratch. Roughly eighty percent of the work is identical, and anyone selling them as three products is selling you the same thing three times.
- The three acronyms describe one underlying job with three scoreboards.
- What genuinely differs is what gets rewarded and how you measure it.
- Schema does not cause citations, and neither does an llms.txt file.
- The genuinely new work is corroboration and factual precision.
They are not three separate disciplines. What genuinely differs is what gets rewarded and how you measure it. Here is the honest version of each, what overlaps, and what to actually do.
The one sentence version of each
SEO earns a position in a list of results. The user sees ten options and picks one. Success is a ranking and a click.
AEO, answer engine optimization, earns your content a place inside an answer. The question gets answered directly, whether in a featured snippet, a People Also Ask box, or an assistant reply. Success is being the source that gets used.
GEO, generative engine optimization, earns your business a mention when a system generates a recommendation from scratch. Nobody ranked anything. The model assembled an answer and named a few options. Success is being one of them.
GEO also means geospatial, and searching it returns mapping results as often as marketing ones. We avoid using it alone for that reason.
What is actually the same
This is the part most articles skip, and it is the part that matters for your budget. All three depend on:
- A site that can be crawled, rendered, and read quickly
- Clear entities. What your business is, where it operates, what it sells, who runs it
- Content that answers real questions rather than circling them
- Consistent facts about your business everywhere they appear
- Credible third party sources that corroborate what you say about yourself
If your site fails on those, it fails at all three. There is no AEO tactic that rescues a slow, thin, inconsistent website, and no GEO trick that makes an unverifiable claim credible.
The three side by side
| Discipline | What you win | How you know |
|---|---|---|
| SEO | A position in a list of results | Rankings and clicks |
| AEO | A place inside the answer itself | Whether you are the source used |
| GEO | A mention in a generated recommendation | Whether you are named at all |
What is genuinely different
Position stops existing
In SEO you are position 4. In an AI answer you are mentioned or you are not. There is no position 4. That changes measurement completely, and it is why anyone quoting you an AI ranking report should be treated carefully.
Corroboration matters more
Search engines will rank a page that talks about itself. Assistants are noticeably more willing to name a business that other sources also discuss. A business that exists only on its own website is a weak candidate for a generated recommendation, however good that website is.
Structure changes
For SEO you can bury the answer at paragraph six and still rank, because the click already happened. For AEO the answer needs to be early, plain, and self contained. If a system has to infer your answer from context, it will more often use a source that stated it outright.
Precision beats persuasion
Marketing language degrades badly here. "Industry leading service" gives a model nothing to work with. "Twenty five presses from 30 to 2,800 tons in Southern California" gives it something specific to repeat. Specificity is now a ranking behavior, not just good writing.
Specificity is now a ranking behavior, not just good writing.
What does not work
A short list, because a great deal is being sold on these right now.
Schema does not cause citations. Structured data helps a machine parse what is already on your page. It creates no authority. Adding schema to a thin page produces a well described thin page.
An llms.txt file does not cause citations. It is a proposed convention with no confirmed effect on any major system. Treat it as an experiment. Publish one if you like, but do not let anyone bill it as a deliverable that produces results.
There is no keyword to stuff. Assistants answer intent, they do not match strings. Repeating "best plumber Boise" fourteen times helps with neither.
What to actually do, in order
- Fix the technical foundationCrawlable, fast, renderable without JavaScript gymnastics.
- Make your business facts identical everywhereWebsite, Google Business Profile, LinkedIn, every directory. Inconsistency lowers confidence in all three systems at once.
- Answer real questions early and plainlyFirst 100 to 150 words, no throat clearing.
- Replace adjectives with specifics you can proveNumbers, service areas, years, capabilities. Specifics survive summarization.
- Earn third party mentionsFrom sources people actually read, not directory spam.
- Measure honestlyRankings for SEO. For AI visibility, a fixed prompt set checked on a schedule, recording whether you were mentioned, whether you were cited, and whether the description was accurate.
If you have been doing SEO properly, you are most of the way to AEO and GEO already, which means there is less new work here than the acronyms imply. If you have been doing SEO badly, no new acronym will save you, and buying an AEO product before fixing the foundation is the most expensive way to learn that.
The uncomfortable summary
The genuinely new work is corroboration and factual precision. Everything else is the discipline you should have been doing anyway, done with more care.
If you want to know where your business stands across search and AI answers before spending anything, that is what the Search Visibility Diagnostic is for.
Common questions
Is SEO dead because of AI?+
No, but the mix has shifted. Informational traffic is declining as assistants answer those questions directly. Commercial and local searches, where someone is choosing a provider, have held up considerably better, because people still want to see and check their options. The response is to stop chasing informational traffic that no longer converts and invest in the searches that do.
Do I need to hire someone separately for AEO?+
No. If your SEO provider cannot explain how their work affects AI visibility, that is a reason to question the provider, not to hire a second one.
Which acronym should I actually care about?+
None of them. Care about whether your business gets found and chosen. The labels are for people selling services.
How do I know if it is working?+
Build a fixed list of questions a real buyer would ask, run them monthly across the assistants your customers use, and record whether you appear and whether what is said about you is correct. Keep the prompts identical between runs or the comparison is meaningless.
Does this apply to a small local business?+
Yes, and arguably more. Local recommendation questions are among the most common things people ask assistants, and consistent business information is the cheapest fix available to a small business.
Keyword volume and difficulty data, DataForSEO, August 2026.
Founder of Big Brain Digital. More than 15 years across SEO, content operations, ecommerce, and AI search. Based in Boise. More about Chris.