The core difference
When someone searches on Google, they get a list of links. They choose one, click through, read, and decide. SEO wins by getting your page high enough on that list that people click it.
When someone asks ChatGPT the same question, they get a single confident answer. One response. Often with a recommendation embedded directly in the text. There is no list to rank on. Either your brand appears in the answer or it does not.
SEO competes for position on a results page. AEO competes for inclusion in the answer itself. The goal is different, the mechanism is different, and the strategy is different.
Search used to send people to your website. AI search gives them the answer before they get there — and either your brand is part of that answer or someone else's is.
They target different systems
Google's search algorithm evaluates pages using hundreds of signals — backlinks, page speed, keyword relevance, user experience, and more. It produces a ranked list and lets the user choose.
AI engines like ChatGPT, Perplexity, and Google AI Overviews work differently. They are not ranking pages. They are synthesising information from multiple sources to construct a coherent answer. The brands they draw from are those they have enough confidence to cite — brands with clear identity, consistent information, and demonstrated expertise in the relevant area.
Optimising for these two systems requires overlapping but distinct approaches. What works for Google does not automatically work for ChatGPT.
Different signals
Here is where the practical difference becomes most visible. The signals that drive performance in each discipline are meaningfully different.
| Signal type | SEO | AEO |
|---|---|---|
| Primary target | Google and Bing algorithms | ChatGPT, Perplexity, Google AI |
| Link signals | Critical — backlinks drive authority | Helpful but not the primary driver |
| Structured data | Useful for rich snippets | Essential — machine readability is core |
| Content format | Keyword-optimised, long-form | Answer-first, citable, FAQ-structured |
| Brand consistency | Moderate importance | High importance — entity clarity is critical |
| Topical authority | Important | Extremely important — content clusters required |
| Page speed | Direct ranking factor | Indirect — affects crawlability |
| Third-party citations | Measured as backlinks | Measured as brand mentions and citations |
The most significant AEO-specific signal is structured data and schema markup. This is the machine-readable layer that tells AI engines exactly what your brand is, what it does, and what it offers. Most brands have very little of it. Without it, AI engines struggle to confidently cite you regardless of how good your content is.
Different outcomes
A well-executed SEO strategy earns you traffic. People find your page in search results, click through, and arrive on your site. You measure success in rankings, organic sessions, and click-through rate.
A well-executed AEO strategy earns you recommendations. When your customer asks ChatGPT what brand to buy in your category, your name appears in the answer. You measure success in citation frequency, visibility score across prompts, and how consistently your brand appears compared to competitors.
The customer journey is different too. AI search users often make decisions without ever visiting a website. The recommendation itself is the conversion event. If your brand is not in that recommendation, you never enter the consideration set — regardless of how well your website converts.
Do you need both?
Yes. They are complementary, not competing.
SEO still drives significant traffic. Google processes billions of searches daily and organic search remains one of the highest-intent traffic channels available. Abandoning SEO to focus exclusively on AEO would be a mistake for most brands.
At the same time, AI-driven discovery is growing rapidly and the brands building AEO foundations now will have a significant advantage as AI search continues to expand. The cost of waiting is measured in category positions that are being claimed by your competitors right now.
Think of it this way: SEO built over years earns you a strong position on Google. AEO built now earns you a strong position in the next era of search — while there is still space to claim your category.
Where to start
If you have no SEO foundation, build it first. Content, technical hygiene, and authority signals all contribute to both disciplines. A strong SEO foundation makes AEO easier to build on top of.
If your SEO is established, AEO is the highest-leverage next step. Most brands in most categories have effectively zero AI visibility. The first-mover window is still open. The brands that act early will own their category in AI search the way early SEO movers came to dominate Google.
The fastest way to understand where you stand is an AI visibility audit. Found By AI runs 20 purchase-intent prompts across ChatGPT, Perplexity, and Google AI and delivers your score in 60 seconds.
Frequently asked questions
No. AEO extends SEO rather than replacing it. Brands that invest in both will have the strongest visibility across all search surfaces — traditional results pages and AI-generated answers.
If you have no SEO foundation, build it first. If your SEO is established, AEO is the highest-leverage next step because most brands have zero AI visibility and the first-mover window is still open in most categories.
They share some foundations — quality content, technical accessibility, and authority signals all matter in both. But AEO adds specific requirements: structured data and schema markup, brand entity consistency, answer-first content format, and topical authority clusters.
Yes. The fundamentals — structured data, answer-first content, brand consistency — can be implemented by any brand with reasonable technical capability. An AI visibility audit gives you a scored baseline and a prioritised action list to work from independently.