AEO vs SEO: What Is the Difference?
SEO competes for a ranked position on a results page the buyer still has to read and click. AEO competes to be inside the single answer an AI returns, often before the buyer visits any site. They share fundamentals like clean content and authority, but AEO adds entity clarity, answer-shaped copy, structured data, and citations on the sources models pull from.
SEO gets you a place on the page. AEO gets you inside the answer the buyer reads instead of the page.
Where they overlap
AEO is not a clean break from SEO. The two share a foundation, and work you have already done for search still counts.
Clean, parseable content
Both reward pages a machine can read without guessing: clear structure, plain facts, and no markup that buries the meaning.
Authority and trust
A site engines already trust ranks better in SEO and gets cited more readily in AI answers. Credibility compounds across both.
Matching real intent
Both start from the actual questions buyers ask. If your content does not answer the question, neither a results page nor a model has a reason to surface you.
If you have invested in genuine SEO, you are not starting from zero. AEO builds on that base and adds the signals answer engines weigh that classic search does not prioritize.
Where AEO goes further
The gap shows up in three places. These are the signals that decide whether a model names you, not just whether a results page lists you.
Entity-level clarity
SEO optimizes pages around keywords. AEO makes your company an unambiguous entity the model can recognize, define, and recommend. When the web agrees on who you are, what you do, and who you serve, a model can name you with confidence instead of hedging.
Answer-shaped copy
A page can rank by being broadly relevant. To be quoted, content has to be structured as a direct answer: the claim first, the support after, in language a model can lift into its response. AEO writes for the lift, with structured data that tells engines exactly what each block means.
Source corroboration
Search rewards your own pages. Answer engines also weigh whether trusted third-party sources agree. If only your site says you are the best, a model stays cautious. When the directories, reviews, and publications it pulls from corroborate you, it names you. AEO builds that off-site evidence on purpose.
Why you can rank and still be invisible
You can hold page one on Google and still be absent from the AI Overview sitting above it. The buyer reads the generated answer, sees the few companies it names, and acts on that. Your ranked link is below the fold of a decision that was already made.
This is the part most teams miss. SEO reporting says you are winning while the answer that actually shapes the shortlist never mentions you. The position you fought for is real, but the buyer never gets far enough down the page to use it. Closing that gap is the work AEO does, and it is why measuring AI visibility separately from rank matters.
Where GEO and LLM SEO fit
GEO (generative engine optimization) and LLM SEO are other names for the same practice as AEO. GEO came out of academic work in 2023 and is sometimes used for any generative model; AEO is the agency term and is sometimes used more narrowly for Google's answers and voice. In real scopes of work the three are one job: tracked buyer questions, citation rate per engine, entity signals and third-party corroboration. SEO is the one that is genuinely different, because it is judged on a ranked link rather than on being named inside the answer.
| SEO | AEO | GEO and LLM SEO | |
|---|---|---|---|
| Target surface | A list of ranked links | The AI-generated answer, snippets and voice | Any generative model's answer |
| Unit judged | A URL | An entity: company, product or person | An entity: company, product or person |
| Main signals | Backlinks, on-page relevance, speed | Entity clarity, schema, third-party corroboration | Entity clarity, schema, third-party corroboration |
| Measured by | Rank position and organic traffic | Citation rate across tracked questions | Citation rate across tracked questions |
Is AEO just SEO with a new name? No, but most of the work is shared. SEO asks whether you rank in a list of links; AEO asks whether you are the name inside the answer. The useful test: if your AEO work is not also improving your organic numbers, you are buying a dashboard, not AEO. Most of the links AI engines cite for buying questions sit on other people's sites (our research on what AI engines cite breaks that down by engine), and earning a place on those pages is off-site authority work that moves organic rankings too.
Using the "wrong" term costs nothing in practice. What matters when you hire is whether the provider tracks named answers across every engine your buyers use and shows you the pages that did the naming. The questions worth asking any provider are in how to choose an AEO agency.
SEO and AEO are partners, not rivals
Keep the SEO that earns trust and clean content. Add the entity clarity, answer-shaped copy, and source corroboration that get you into the answer itself. That is the program SourceRank AI runs for B2B companies, built on the measurement discipline Frederik Jakobsen and the team refined across more than 1,000 campaigns at Danish Lead Co.
What is AEO?
The plain-English definition of Answer Engine Optimization and how it gets you named, cited, and ranked inside AI answers.
Read the answer ->Rank in Google AI Overviews
How to earn a citation in the generated answer that now sits above your ranked link, not just a position on the page.
Read the answer ->See your AEO plan
Start with a Visibility Audit that shows where AI ranks you today and who is named instead, then scale into a managed program.
View pricing ->Common questions
Can I do AEO without SEO?
You can start, but they reinforce each other. Many signals that help a page rank also help a model trust and cite it. The difference is that AEO adds entity clarity, structured answers, and off-site citations that classic SEO does not prioritize.
Which matters more in 2026?
It depends on where your buyers are. As more B2B research starts inside AI assistants, the share of decisions made before anyone clicks a link keeps growing, which is exactly the moment AEO captures.
Is AEO just SEO with a new name?
No, but most of the work is shared. SEO is judged on whether you rank in a list of links; AEO on whether you are named inside the AI's answer. If your AEO work is not also improving your organic numbers, you are buying a dashboard rather than AEO.
What is the difference between AEO, GEO and LLM SEO?
In practice, none. GEO (generative engine optimization) is the academic term from 2023, and AEO and LLM SEO are the agency terms. All three describe the same work: tracked buyer questions, citation rate per engine, entity signals and third-party corroboration.