AEO fundamentals

What is AEO and GEO, and how is it different from SEO?

By Arnav Mukherjee, founder of TofuBofu · July 4, 2026

The first time I ran our own tool against a company with solid Google traffic and a respectable domain rating, the AI visibility score came back at zero. Not low. Zero. The company ranked on page one for its category, had years of backlinks, and a clean, fast website. And when I asked ChatGPT, Claude, and Perplexity the exact questions its buyers ask, not one of them named it.

That gap, great on Google and invisible in AI, is the whole reason AEO and GEO exist as separate disciplines. Here is what they are, and where they part ways from the SEO you already know.

The definitions, in plain English

AEO (Answer Engine Optimization) is the practice of getting your company named and cited inside the answer an AI engine generates. When a buyer asks ChatGPT "who should I hire for X," AEO is the work that makes your firm one of the names it returns.

GEO (Generative Engine Optimization) is the same goal described from the model's side: optimizing your content so generative AI systems surface it. In day-to-day practice the two overlap almost entirely, and most teams use them interchangeably. If someone insists on a distinction, AEO leans toward "be the answer" and GEO leans toward "be readable by generative systems." The tactics are the same.

SEO (Search Engine Optimization) you know: it gets your page ranked in a list of links, and the user picks one. That distinction, a ranked list versus a named answer, is the fault line everything else runs along.

A ranked list versus a synthesized answer

On the left, being absent from the top spot still leaves you visible on the page. On the right, there is no page. The engine hands the buyer two or three names and a reason for each. If you are not one of them, the buyer often never learns you exist. That is why a zero can happen to a company that "does fine on Google."

Where AEO and SEO actually overlap

Here is the honest part, because you will hear people claim "AEO is just SEO." They are half right. AEO builds on SEO fundamentals. If a page cannot be crawled, has no structure, and reads like filler, it will fail on both. Structured data, clean technical crawlability, and genuinely useful content help you rank on Google and help engines retrieve you for an answer.

But AEO is a distinct layer on top, with signals classic SEO never cared about. Engines weight third-party citations (Clutch, G2, Reddit) heavily. They reward content written to match the long, conversational way people talk to AI rather than the short keywords they type into Google. And they lean on structured data far more than a blue-link result does: SE Ranking found 71% of pages ChatGPT cites carry structured data, and 65% for Google AI Mode. So good SEO is the floor. It is necessary and not sufficient.

Why this matters now, not later

Buyer behavior has already moved. G2's 2026 research found 51% of B2B buyers now start their research on an AI chatbot, up from 29% a year earlier, and 69% chose a different vendor than they had planned based on an AI recommendation. Forrester found 94% of B2B buyers now use AI somewhere in the buying process. The answer layer is where a growing share of shortlists get built.

The company that scored zero was not badly run. It had simply optimized for the old surface and never touched the new one. The good news in that story is that AEO is winnable: because so few firms have done the work, the specific questions your buyers ask are often unclaimed, and the first firm to answer one well tends to hold it.

SEO signals vs AEO signals, side by side

The clearest way to see the difference is to line up what each channel actually weights. The fundamentals overlap, but the emphasis diverges sharply, and that divergence is why a page-one Google result can be invisible in AI answers.

Read the right-hand column and you can see the AEO playbook fall out of it: get your schema and rendering right, earn a few third-party citations, and write specific, conversational content. The practical sequence is to keep your SEO fundamentals healthy first, since they are the shared floor, then layer these AEO-specific signals on top. You are not choosing between the two columns. You are making sure the second one is no longer empty.