Guide
GEO vs AEO vs SEO: what is the difference?
SEO aims to rank your pages. AEO aims to make your content the direct answer. GEO aims to get your business cited inside AI-generated answers. They share the same foundations, so most businesses should treat them as one programme, in a sensible order.
Short answer
SEO (search engine optimization) is about ranking in search results. AEO (answer engine optimization) is about being the direct answer to a question, such as a featured snippet, a voice reply or an AI summary. GEO (generative engine optimization) is about being named or cited in the answers produced by AI systems like ChatGPT, Gemini, Perplexity and Copilot.
They are not rivals. A site that is easy to crawl, clearly written and backed by real evidence does better at all three.
What is SEO?
SEO is the work of making your pages easy for search engines to find, understand and rank: technical health, relevant content, internal links, a clear structure and a credible reputation. For local businesses it also includes a well-run Google Business Profile and genuine reviews. Success is measured in impressions, clicks, rankings and enquiries.
What is AEO?
AEO starts from the question rather than the keyword. It means writing a direct answer first, then explaining, using headings and lists that machines can read. The target is the featured snippet, the voice answer and the AI summary. Success is measured by whether your page holds those positions for the questions your buyers ask.
What is GEO?
GEO focuses on generative AI systems that compose answers. They draw on what they can reach and verify, so GEO concentrates on access for AI crawlers, clear information about who you are, and evidence from other sources. Success is measured by whether you are named or cited in the answers to a fixed set of buyer prompts, and by the enquiries that follow.
How they compare
- SEO: aims to rank pages. Measured by rankings, clicks and enquiries.
- AEO: aims to be the direct answer. Measured by snippets held and answer visibility.
- GEO: aims to be cited in AI answers. Measured by mentions and citations across a fixed prompt set.
- Shared foundations: crawlability, clear content, consistent business facts and real third-party evidence.
Which should you do first?
Start with the foundations that help all three: make sure your site can be crawled and indexed, say clearly who you are, what you do and where, and keep your business details consistent. Then rewrite your most important pages to answer first (AEO), build genuine evidence and test AI answers with real prompts (GEO).
Nobody can guarantee a ranking, a snippet or an AI citation. Treat anyone who does with caution.
FAQ
Questions.
What does AEO stand for?
Answer engine optimization: shaping content and business information so search engines, voice assistants and AI tools can use it as a direct answer.
What does GEO stand for?
Generative engine optimization: improving how likely a business is to be found, understood and cited in answers generated by AI systems.
Is GEO replacing SEO?
No. GEO builds on SEO. Sites that are hard to crawl or unclear tend to do poorly in AI answers too.
Do I need all three?
You need the shared foundations. The rest is emphasis. Most businesses benefit from running them together rather than buying three separate services.
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By Alban de Vaucorbeil, founder of Excelsior AI. Published . Practical guidance, not a guarantee of results.