What is Answer Engine Optimization (AEO)?
AEO is the question-level view of showing up in AI. Where GEO covers the whole picture, AEO zooms in on the specific questions buyers ask and whether your brand is the answer. This guide defines it and shows where it fits.
By the Citanto team · Updated
What is Answer Engine Optimization?
Answer Engine Optimization (AEO) is the practice of working on your content so your brand can be the answer when buyers ask an AI assistant a direct question about your category. The unit of work is the question: which buyer questions you appear in, and whether the assistant recommends you.
Answer engines (ChatGPT, Perplexity, Gemini and Google's AI answers) return one synthesized response to a question instead of a list of links. AEO is the work of making your brand a credible answer to the questions that matter to a buyer.
How is AEO different from GEO, LLMO and SEO?
SEO targets search rankings. GEO is the umbrella for being featured by AI. LLMO focuses on being cited as a source. AEO focuses on the question: showing up as the answer to the specific things buyers ask. They're complementary angles on the same outcome.
The practical difference is where you start. AEO starts from the buyer's questions, especially high-intent ones like comparisons and selection criteria, and works backwards to the content that answers them.
Which questions matter most for AEO?
The questions closest to a decision: 'best X for Y', 'X vs Y', 'how to choose an X' and 'is X worth it'. These are where an assistant tends to shortlist brands, so being named there is closest to the buyer's decision.
- Comparison questions ('X vs Y', 'best tool for Y').
- Selection-criteria questions ('how to choose an X').
- Use-case questions ('best X for small agencies').
- Trust questions ('is X reliable', 'X alternatives').
How do you approach AEO?
Find the buyer questions where assistants name competitors and not you, then publish content that answers each question directly, with a concise answer up top, question-style headings and your brand named. Add structured data that matches the page, keep it current, and re-measure those questions.
Citanto's planner uses your measured results by question type to prioritise content angles, and the next month's measurement shows what changed on the same questions.
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Frequently asked questions
Is AEO the same as GEO?
AEO is a focused part of GEO. GEO (Generative Engine Optimization) is the umbrella for being featured by AI; AEO (Answer Engine Optimization) is the question-level slice, being the answer to specific buyer questions. The tactics overlap, so the terms are often used together.
Is AEO just FAQ pages?
FAQ pages help, because they map cleanly to questions, but AEO is broader. It's about structuring all your content so it answers the questions buyers ask AI, with concise answers, question-style headings and your brand named, not only a list of FAQs.
How is AEO measured?
By question intent: track which categories of buyer question (comparison, pricing, selection, trust) name your brand in AI answers, and which name competitors instead. That per-question view tells you where to focus, rather than a single aggregate score.