What Is Answer Engine Optimisation (AEO)? A 2026 Primer
AEO is the practice of optimising content to be cited by AI answer engines like ChatGPT, Perplexity, Gemini, and Google's AI Overviews. Here's how it works.
AEO optimises content to be quoted by AI answer engines. Win it by giving a direct 40–60 word answer, using schema, and earning brand mentions across the web.
The 40-second answer
Answer Engine Optimisation (AEO) is the practice of structuring your content so AI search engines — ChatGPT, Perplexity, Google's AI Overviews, Gemini, and Claude — select you as a cited source. Unlike traditional SEO, which optimises for a ranked list of blue links, AEO optimises for a single synthesised answer.
Why AEO exists now
Google's AI Overviews now appear on more than 30% of informational queries, and ChatGPT Search handles over a billion searches a week. When the user's answer is composed by a model, ranking #1 in the old sense is no longer enough — you need to be the source it quotes.
How AI engines pick sources
Each engine does it slightly differently, but the pattern is consistent:
- Retrieval: The engine runs a search (Bing, Google, or its own index), pulls 10–50 pages.
- Chunking: Pages are split into short passages.
- Scoring: Passages are ranked by how directly they answer the prompt.
- Citation: Top passages are linked as sources in the reply.
The practical takeaway: you win by being the clearest, most extractable passage — not the longest article.
The 6 AEO ranking factors that matter
- A direct, standalone answer within the first 100 words.
- Semantic structure — clear H2/H3, short paragraphs, lists, tables.
- Schema markup — Article, FAQPage, HowTo, Organization.
- Entity clarity — unambiguous mention of who, what, where.
- E-E-A-T signals — named author, citations, source links.
- Brand mentions across the web — not just backlinks, any mention helps.
AEO vs SEO at a glance
| Dimension | SEO | AEO |
|---|---|---|
| Goal | Rank in blue links | Be cited in an AI answer |
| Format | Long-form authority | Short, extractable chunks |
| Win signal | Clicks | Citations + brand visibility |
| Measurement | Keyword rank | Mention tracking |
What to do this week
- Add a 40–60 word direct answer block under the H1 of your top 10 pages.
- Implement FAQPage schema on every article.
- Write in short paragraphs (2–3 sentences).
- Build one comparison table per article — AI engines love tables.
AEO is where SEO was in 2010: early, winnable, and wildly under-optimised. Move now.
Frequently asked
Is AEO the same as GEO?
Generative Engine Optimisation (GEO) is a synonym used interchangeably with AEO. Both describe optimising for AI-generated answers.
Does AEO replace SEO?
No. Traditional SEO is still how most AI engines retrieve candidates. AEO builds on top of SEO — you still need to rank before you can be cited.
How do I track AEO performance?
Track brand mentions in ChatGPT, Perplexity, and Gemini using tools like Profound, Otterly, or manual prompt audits. Rising citations = working AEO.
Independent analysis on SEO, AEO, and the future of search.
