01 / COMPARISON
SEO vs AEO vs GEO at a glance
| SEO | AEO | GEO | |
|---|---|---|---|
| Stands for | Search engine optimization | Answer engine optimization | Generative engine optimization |
| Goal | Rank your pages in search results | Be the direct answer to a question | Get your brand recommended in AI answers |
| Where it shows up | Google and Bing results, map pack | Featured snippets, AI Overviews, voice assistants | ChatGPT, Perplexity, Gemini, Google AI Overviews and AI Mode |
| What matters most | Keywords, content, links, technical health | Clear answers, structure, FAQ schema | Brand mentions, reviews, consistent info, trust |
| How you measure it | Rankings, traffic, leads | Snippets won, AI Overview citations | AI mentions, citations, AI referral traffic |
On a small screen, scroll the table horizontally to compare each column.
02 / THE FOUNDATION
SEARCH ENGINE OPTIMIZATION
What is SEO?
SEO, or search engine optimization, is the process of improving your website so it ranks higher in search engines like Google. It covers keyword research, content, on-page optimization, technical SEO, link building, and local SEO. SEO is still the foundation, because AI tools pull a lot of their answers from websites that already rank well.
The four main types of SEO are on-page SEO, off-page SEO (links and mentions), technical SEO, and local SEO.
03 / ANSWER ENGINE OPTIMIZATION
ANSWER ENGINE OPTIMIZATION
What is AEO (answer engine optimization)?
AEO is the process of structuring your content so search engines and AI tools choose it as the direct answer to a question. Think of the answer box at the top of Google, the AI Overview, or the reply Siri reads out loud. AEO focuses on answering real questions clearly, usually in the first sentence, with clear headings and FAQ schema.
04 / GENERATIVE ENGINE OPTIMIZATION
GENERATIVE ENGINE OPTIMIZATION
What is GEO (generative engine optimization)?
GEO is the process of getting your business recommended by AI tools that write their own answers, like ChatGPT, Perplexity, Gemini, and Google's AI Overviews. These tools build their answers from your website, your reviews, and what other sites say about you. GEO makes sure all of that is clear, consistent, and trustworthy, so AI picks you.
05 / LANGUAGE MODELS
LARGE LANGUAGE MODEL OPTIMIZATION
What is LLMO (large language model optimization)?
LLMO stands for large language model optimization. Large language models (LLMs) are the technology behind ChatGPT, Gemini, Claude, and similar tools. LLMO means optimizing your brand so these models understand it and mention it. In practice, LLMO and GEO mean almost the same thing. GEO is the more common name.
06 / THE UMBRELLA TERMS
AI OPTIMIZATION
What are AIO and AI SEO?
AIO usually means AI optimization: getting your business to show up in AI-powered search. Some people also use AIO to mean "AI Overviews," Google's AI summaries at the top of search results. Either way, it overlaps with GEO and AEO.
AI SEO is the catch-all term. It usually means SEO updated for AI search, so it includes traditional SEO plus AEO and GEO. Some people also use "AI SEO" to mean using AI tools to do SEO work. When an agency says AI SEO, ask which one they mean.
07 / WHAT COMES NEXT
SUPERINTELLIGENCE OPTIMIZATION
What is SIO (superintelligence optimization)?
SIO, or superintelligence optimization, is a newer term some marketers are using for optimizing your brand for future AI systems that are far more capable than today's tools. It isn't a separate practice yet. The same fundamentals apply: be clear about who you are, be consistent everywhere, earn real trust, and publish truly helpful content. If you do those well, you're ready for whatever comes next.
08 / THE SYSTEM
How SEO, AEO, and GEO work together
Picture three layers:
- SEO is the foundation. A fast, well-built site with strong content and links.
- AEO sits on top. Your content is structured so it can be quoted as the answer.
- GEO is the top layer. Your brand is trusted and recommended across AI tools.
You can't skip the foundation. A business with weak SEO rarely gets recommended by AI, because AI tools rely heavily on sites that already rank and get mentioned.
09 / THE REALITY CHECK
Is SEO being replaced by GEO?
No. GEO builds on SEO, it doesn't replace it. AI tools still pull much of their information from websites that rank well in search. What's changing is how success is measured. Clicks and rankings still matter, but so do mentions and citations in AI answers.
10 / YOUR BUSINESS
Which one does your business need?
- Local service business: Local SEO first, then GEO so AI tools recommend you nearby. AEO helps you answer common customer questions.
- E-commerce brand: SEO for product and category pages, plus GEO for AI shopping answers.
- B2B or professional services: SEO and AEO for the questions buyers research, plus GEO so AI tools name you when buyers ask for recommendations.
Most businesses need all three. That's why we include GEO and AEO in every SEO plan.
11 / FIRST STEPS
How to get started with AI search optimization
- 01
Check what AI says about you. Ask ChatGPT, Perplexity, and Google's AI about your business and your services.
- 02
Fix your basics. Make sure your website clearly explains what you do, who you serve, and where.
- 03
Make your info consistent. Same name, address, phone, and services everywhere.
- 04
Answer your customers' questions. On your site, in plain language, with the answer first.
- 05
Get more reviews and mentions. AI trusts what other people say about you.
Or book a free AI visibility audit and we'll do it for you.
12 / QUICK ANSWERS
SEO, AEO, and GEO FAQs
What's the difference between SEO and GEO?+
SEO gets your pages ranked in search results. GEO gets your brand recommended in AI-generated answers from tools like ChatGPT and Google AI Overviews.
What's the difference between AEO and GEO?+
AEO focuses on making your content the direct answer to a specific question. GEO is broader and focuses on getting your brand trusted and recommended across AI tools.
Is AEO a part of GEO?+
Mostly, yes. AEO is about being quotable, which is one piece of getting recommended by AI. Good GEO includes AEO.
Is LLMO the same as GEO?+
Practically, yes. Both mean optimizing your brand for large language models and the AI tools built on them. GEO is the more common term.
What does AIO mean in SEO?+
AIO usually means AI optimization, getting your business visible in AI-powered search. Some people use it to mean Google's AI Overviews specifically.
Is SEO dead?+
No. SEO is the foundation that AEO and GEO are built on. AI tools still lean heavily on websites that rank well.
Do I need a different agency for each one?+
No. They overlap so much that they work best in one plan. We do SEO, AEO, and GEO together.
ABOUT THE AUTHOR
Mitch Lunceford
Mitch Lunceford is the founder of Market Launch, a digital marketing agency in Highland, Utah. He's worked in digital marketing since 2012, and his team runs SEO, AEO, and GEO for businesses across the U.S., including for other marketing agencies.
More about Mitch.Want to know what AI says about your business?
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