AEO vs SEO vs GEO
Three acronyms, heavy overlap, and a lot of marketing noise. Here is what each one actually means, where the differences are real, and which to prioritize.
SEO optimizes for ranking in a list of links. AEO optimizes for being named in a direct answer. GEO optimizes for how generative models describe you when they synthesize a response. In practice AEO and GEO overlap heavily and are often used interchangeably; SEO is the foundation both depend on.
The terminology is genuinely messy, and some of that mess is manufactured — a new acronym is easier to sell than an existing discipline. Here's what each one actually refers to.
What is SEO?
Search engine optimization: earning visibility in the ranked list of results a traditional search engine returns. The unit of success is a position, and the payoff is a click.
It is not obsolete. It is the gate. 97% of sources cited in Google AI Overviews come from the top 20 organic results, which means a page that can't rank cannot be cited there at all.
What is AEO?
Answer engine optimization: being the business named, and the source cited, when an engine returns a direct answer instead of a list. That includes AI Overviews, featured snippets, and assistant responses.
The distinguishing feature is that there may be no click. Success looks like being named in an answer someone reads and acts on without ever visiting your site.
What is GEO?
Generative engine optimization: influencing what a generative model says about you when it composes an answer from many sources. Where AEO asks "am I in the answer," GEO asks "what does the model believe about me, and is that what I'd want it to say."
GEO leans more on brand perception and the overall corpus of what's written about you — which is why practitioners often describe it as mostly strategic rather than technical.
Are AEO and GEO the same thing?
Close enough that the distinction rarely changes what you do. Both mean structuring your content and brand presence so AI systems cite and recommend you. If an agency insists they're fundamentally different disciplines requiring separate retainers, treat that as a pricing strategy rather than a methodology.
How do they compare?
| SEO | AEO / GEO | |
|---|---|---|
| Goal | Rank in a list | Be named in an answer |
| Success metric | Position, clicks, traffic | Mentions, citations, share of voice |
| Where effort goes | Mostly on-site | Mostly off-site — brands are ~6.5x more likely cited via third-party sources |
| Highest-leverage signal | Backlinks and content quality | YouTube mentions (0.737 correlation), web-wide brand mentions (0.664) |
| Timeline | 3–12 months | Weeks on Perplexity; 6–12 months on ChatGPT and AI Overviews |
| Prerequisite | — | SEO. Without top-20 rankings, AI Overview citation is closed. |
Does SEO still matter?
Yes, and more than the "SEO is dead" framing suggests. AI Overviews draw 97% of citations from the top 20 organic results. AEO does not replace SEO — it sits on top of it. A weak organic foundation caps everything above it.
What has changed is the payoff. Ranking used to reliably produce clicks. Now over 60% of searches end without one. You still need the ranking — it's how you become eligible — but you can no longer treat traffic as the only thing a ranking is worth.
Which should a small business prioritize?
Sequence rather than choose:
- Fix the foundation. Make sure AI crawlers aren't blocked, your entity is consistent, and you rank for your core terms. Blocked crawlers are the most common silent failure we find.
- Baseline your visibility. Twenty prompts, four engines, tracked weekly. Do this before changing anything.
- Build off-site presence. Video, third-party mentions, community participation. This is where citations are actually won and where most of your effort belongs.
- Make content extractable. Direct answers, question headings, attributed statistics.
Notice that only step four is traditional content work. If your plan is mostly writing blog posts on your own domain, it's aimed at the smallest lever available.
Find out what AI says about your business.
Ten questions. Instant score. No contact details needed to see your results.
Get Your Free AI Visibility Score™ →