SEO, AEO, GEO: What Actually Changed in Search
I have had this conversation a dozen times in the last few months. Someone asks what we do, I mention AEO and GEO, and I watch their face. Most people have no idea what those letters mean. That includes people who run marketing for a living.
That is not a knock on anyone. The vocabulary moved faster than most of the industry did. But the thing the vocabulary describes is real, and it is already changing how customers find businesses. Here is what those letters actually mean.
What SEO was, and still partly is
Search Engine Optimization is the process of getting a website to appear in a search engine's results. You type a question into Google, you get a page of links, and SEO is the discipline of earning a spot near the top of that page.
For about twenty-five years, that was the whole game. Rank on page one, earn the click, and the visitor lands on your site. SEO is not dead. People still type things into Google and still click links. But the page of ten blue links is no longer the only place an answer lives. For a growing share of searches, it is not where the answer lives at all.
What changed
People stopped clicking as much.
Roughly six in ten Google searches now end without a click on any result. The searcher got what they needed on the results page itself, or inside an app, or from an assistant, and never visited a website. Google posts an answer at the top. A voice assistant reads one back. An AI tool writes a few sentences in response to the question.
The search did not disappear. The click did. If your visibility depends entirely on that click, you are slowly going invisible without realizing it.
That shift created two new disciplines. They have ugly acronyms, but the ideas behind them are simple.
AEO: Answer Engine Optimization
An answer engine provides a direct answer rather than a list of links. Google's AI Overviews, the snippet box that sometimes sits above the normal results, the knowledge panels, and the response a voice assistant reads aloud. Those are answer engines.
Answer Engine Optimization is the work of becoming the answer those engines give.
The difference from old-school SEO is the goal. SEO tries to rank a page so a person will click it. AEO tries to get a specific, clear answer pulled out of your content and shown directly to the person, often with your name attached and no click required. It rewards content that answers a real question plainly, in a form a machine can lift and trust.
GEO: Generative Engine Optimization
A generative engine writes an answer for the user rather than pointing them to one: ChatGPT, Perplexity, Google's Gemini, or Claude. Someone asks a question in plain language, and the tool composes a response by drawing on sources it considers credible.
Generative Engine Optimization is the work of becoming one of the sources those tools pull from and name.
The term emerged from a 2023 research paper by academics at Princeton, Georgia Tech, the Allen Institute for AI, and IIT Delhi. They were studying a problem that had no name yet. When an AI writes an answer, whose information does it use, and can a business influence that? The question now has a name and a fast-growing audience. ChatGPT alone is used by hundreds of millions of people every week, and a real slice of them are asking it the kind of questions that used to start on Google.
Here is the part that catches owners off guard. You can rank number one on Google and still never get mentioned by ChatGPT. The two systems judge content differently. Winning one does not win you the other.
Why do the terms blur together?
You will see AEO and GEO used as if they mean the same thing, and you will see other acronyms thrown around next to them. Part of that is a field new enough that nobody has settled on the vocabulary. Part of it is that the lines genuinely overlap. Google's AI Overviews are both an answer engine feature and a generative one.
We do not get precious about the labels. What matters is the change underneath them. Customers are getting answers in more places than your website, and being found now means being present in those places, not just on a results page.
Why this matters to you
If you own a business, the practical question is not whether you need to memorize three acronyms. It is this. When one of your prospects asks a machine for a recommendation in your category, does your business come up, and is the recommendation accurate?
For a lot of businesses, the honest answer right now is no, or they have never checked. That is a gap. It is also an opening, because most of your competitors have not checked either.
The discipline has not changed.
This is what I tell owners. This is not a new trick to chase. It is the same fundamentals pointed at a new surface.
The businesses that win here are not the ones that found a clever hack. They are the ones who treat visibility as a plan instead of a reaction. They decide what they want to be known for, build content that earns it, and stay consistent long enough for the engines, old and new, to trust them. Plan the work, work the plan. The acronyms change. That part does not.
At Momentum, AEO and GEO are not separate products; they are essential for search in the age of conversational AI. They are part of the same marketing plan that is supposed to put people through the door. The door has more entrances than it used to.
If you are not sure whether your business shows up when a customer asks a machine about your category, that is worth finding out. It is one of the things we look at in a strategy call, and the call is a conversation, not a pitch.
