SEO, GEO, and AEO all chase the same buyer. SEO earns your page a spot in Google’s list of links. AEO (answer engine optimization) and GEO (generative engine optimization) earn your brand a mention inside the answer itself, when someone asks ChatGPT, Perplexity, or Google’s AI Overviews. Most of the work overlaps. How you measure it doesn’t.
If you’ve sat in a marketing meeting this year, you’ve probably heard all three acronyms, sometimes in the same sentence and sometimes sold as three separate services. So what actually changed, and what should you do about it? Let’s break it down.
Three terms, one buyer
SEO: earn the ranking
Search engine optimization is the work of earning a ranking in search results. The goal is a spot near the top of a list of links, and the reward is a click. It still matters, and it’s still the foundation everything else sits on.
AEO: become the answer
Answer engine optimization is about becoming the answer instead of one of ten options. The term came out of the featured snippet and voice assistant years, when Google started answering questions at the top of the page and smart speakers started reading answers out loud. Today it covers AI answers too.
GEO: get into the generated answer
Generative engine optimization is the newest of the three. It was named in a 2023 research paper by researchers at Princeton, Georgia Tech, the Allen Institute for AI, and IIT Delhi, and it focuses on the AI tools that write a fresh answer every time someone asks, like ChatGPT, Perplexity, and Google’s AI Mode.
So is GEO different from AEO? In practice, it’s a newer name for the same goal: get your brand into the answer. We treat them as one program, and you’ll see both names used for the same work.
Where they overlap (most of it)
A lot of people are surprised to hear this, but Google says you don’t need anything special to show up in its AI features. Its guidance for site owners puts it plainly: “There are no additional requirements to appear in AI Overviews or AI Mode.”
In May 2026, Google published a full guide to optimizing for its generative AI features, and the advice will sound familiar to anyone who has done SEO well. Make content people find helpful. Keep the technical side clean so Google can crawl and understand your pages. A complete Business Profile can help your products and services show up. Google also says you don’t need an llms.txt file, special markup, or AI-specific rewrites of your pages to be included.
That’s good news. If your SEO foundation is solid, you’re not starting over. You’re building on it.
Where they split
If most of the work is the same, why does anyone need a new name for it? Because a few things really did change.
1. The buyer may never see a list of links
More and more research starts with a question typed into a chatbot. In a March 2026 survey of 1,076 B2B software buyers, G2 found 51% now start their research in an AI chatbot more often than in Google. When the answer names three companies, being the fourth result on Google doesn’t help much. We wrote about how search behavior is shifting in Beyond Google: Search Behavior in the AI Answer Era.
2. Ranking first no longer guarantees a citation
In July 2025, Ahrefs found that about 76% of pages cited in Google’s AI Overviews also ranked in the top 10 for the same search. When they ran the study again in early 2026, across 863,000 keywords, that share was about 38%. Ahrefs notes that its tracking also improved between the two studies, so part of that drop is better detection. Either way, the gap is real: a strong ranking helps, but it no longer guarantees a spot in the AI answer.
3. Specifics get cited, filler doesn’t
The research paper that named GEO tested what makes a source more likely to show up in an AI answer. Adding citations, quotes from relevant sources, and statistics raised a source’s visibility by up to 40%. Keyword stuffing, the oldest trick in SEO, barely helped and sometimes did worse than no change. AI tools reward the page that says something specific and backs it up.
4. You measure mentions, not just clicks
This is the biggest change, and it’s the one most teams aren’t set up for yet. An AI answer can mention your brand without anyone clicking through to your site. So rankings and traffic alone can’t tell you whether your AEO work is landing.
Search Console now has a report for Google’s generative AI features. On our own site, it showed rhycom.com in AI Overviews and AI Mode 418 times from July 12 to October 11, 2026, and the homepage carried 167 of those. That’s visibility a standard rankings report would miss completely. Outside Google, we track which questions get our clients named in ChatGPT, Perplexity, Gemini, and Copilot, and who gets named instead.
What to do first
You don’t need three strategies. You need one, done in this order.
1. Keep the SEO foundation solid
A site search engines can crawl and trust is still step one for every AI tool that reads the web. If your pages aren’t indexed, nothing else on this list matters.
2. Answer the question in the first few lines
Put the direct answer at the top of the page, in plain words, then explain. That’s what we did at the top of this post. AI tools pull passages, and a passage that answers the question on its own is easier to use.
3. Add a fact only you can supply
A real number, a client result, a process you actually run. Generic advice is everywhere, so assistants have no reason to cite yours. A specific result from your own work gives them one.
4. Make your business easy to identify everywhere
Your name, services, and location should read the same on your site, your Google Business Profile, LinkedIn, and the directories in your industry. Structured data on your site helps tie it together. The more consistent the picture, the easier it is for an AI tool to be confident it’s talking about you.
5. Measure rankings and mentions side by side
Track the questions your buyers ask, check who gets cited, and watch it month over month next to your search rankings. That’s how you tell whether the work is moving anything. We report it all in Rhythm℠, so clients see search and AI visibility on the same screen.
So which one should you pay for?
One program that covers all three. If someone pitches GEO as a separate service from SEO, it’s fair to ask what they would do differently. Google’s own guidance says the foundation is the same. What should be different is the measurement.
That’s how we built our SEO & AEO service. For Manildra Group USA, search visibility on the same 41 keywords went from 11.4% to 61.9% in 16 weeks, and the full story is in SEO & AEO That Moves the Needle.
If you’re curious where your brand shows up in AI answers today, we’d love to help you find out. Start a conversation with us, and let’s take a look together.
Sources
- Google Search Central, “AI features and your website” (updated December 10, 2025): developers.google.com/search/docs/appearance/ai-features
- Google Search Central, “Google’s Guide to Optimizing for Generative AI Features on Google Search” (May 2026, updated July 10, 2026): developers.google.com/search/docs/fundamentals/ai-optimization-guide
- G2, “The Answer Economy: How AI Search Is Rewiring B2B Software Buying,” survey of 1,076 B2B software buyers, March 2026 (published April 2026)
- Ahrefs, AI Overview citations and top 10 rankings (March 2, 2026), compared with its July 2025 study
- Aggarwal et al., “GEO: Generative Engine Optimization,” arXiv:2311.09735 (2023, revised 2024), KDD 2024
- Rhycom Search Console, generative AI features report, July 12 to October 11, 2026