TL;DR
AEO (Answer Engine Optimisation) wins the single answer box on Google, Alexa, Siri, and AI Overviews. GEO (Generative Engine Optimisation) wins citations inside ChatGPT, Perplexity, Claude, and Gemini. Modern SEO programmes need both — plus traditional SEO as the foundation.
What Is Answer Engine Optimisation (AEO)?
Answer Engine Optimisation is the practice of structuring your content so an answer engine can extract a single, direct response to a user's question — and serve it back without a click. Featured snippets, "People Also Ask" boxes, voice assistant responses, and Google's AI Overviews are all answer-engine surfaces.
The goal isn't just to rank — it's to be the extracted answer. That requires tight question-and-answer formatting, structured data, and content that resolves an intent in under 60 words.
Core AEO tactics
- ✓Lead each section with a direct, one-sentence answer (then expand)
- ✓Implement FAQPage, HowTo, and Article schema
- ✓Use clean H2/H3 question headings that mirror search queries
- ✓Build topical authority through cluster content
- ✓Optimise for conversational, voice-style queries
What Is Generative Engine Optimisation (GEO)?
Generative Engine Optimisation is the practice of getting your brand cited, quoted, and recommended inside the answers produced by generative AI engines — ChatGPT, Perplexity, Claude, Gemini, Copilot, and the new wave of LLM-powered search.
Generative engines don't return a list of blue links. They synthesise an answer from many sources and may show a handful of citations. GEO is about being one of those citations — and about being the brand the model recommends when a buyer asks "what's the best…".
Core GEO tactics
- ✓Publish original data, statistics, and quotable expert opinion
- ✓Earn mentions on sites LLMs trust (Reddit, Wikipedia, top-tier publications, G2, Trustpilot)
- ✓Maintain a clean, machine-readable site (semantic HTML, schema, llms.txt)
- ✓Build entity consistency — same name, same description, same facts everywhere
- ✓Track brand visibility inside ChatGPT, Perplexity, and Gemini answers monthly
AEO vs GEO: Side-by-Side Comparison
| Dimension | AEO | GEO |
|---|---|---|
| Primary surfaces | Google snippets, AI Overviews, Siri, Alexa, Google Assistant | ChatGPT, Perplexity, Claude, Gemini, Copilot |
| Output format | Single extracted answer | Synthesised answer with optional citations |
| Win condition | Be the source extracted | Be cited and recommended inside the answer |
| Content unit | Concise Q&A blocks (~40–60 words) | Original data, expert quotes, comparison frameworks |
| Key technical lever | Schema markup (FAQPage, HowTo, Article) | Semantic HTML, entity clarity, llms.txt |
| Off-page lever | Topical authority + backlinks | Mentions on Reddit, Wikipedia, review sites, news |
| Tracking | SERP position + snippet ownership | Citation share-of-voice inside LLM answers |
| Click behaviour | Often zero-click | Citation clicks + assisted brand searches |
| Update cadence | Real-time (crawl-based) | Periodic (model training + RAG retrieval) |
The Strategic Difference That Actually Matters
AEO is an extraction game. There is one winner per query, and the winner is chosen by an algorithm that reads your page right now.
GEO is a reputation game. There is no single winner — the model picks 3–8 sources to synthesise from, and it weights them by perceived authority, recency, and the consistency of what they say about your brand across the open web.
That's why GEO can't be hacked with on-page tweaks alone. If Reddit, G2, Wikipedia, and three top industry publications never mention you, no amount of schema markup will get ChatGPT to recommend you.
Where AEO and GEO Overlap
Clear, factual writing
Both surfaces reward direct, unambiguous prose. Hedged marketing language gets ignored by extractors and downranked by LLMs.
Strong entity signals
A consistent Organization schema, sameAs links, and a verified Knowledge Panel help Google extract you AND help LLMs disambiguate you.
Topical depth
Covering a topic comprehensively — pillar plus clusters — earns featured snippets and gives LLMs more surface area to cite.
Technical health
Fast pages, crawlable HTML, clean sitemaps, and an llms.txt file all reduce friction for both Googlebot and AI crawlers like GPTBot and PerplexityBot.
How to Implement AEO and GEO Together
Audit your current AI visibility
Run your top 20 commercial queries through ChatGPT, Perplexity, and Google AI Overviews. Note which brands get cited, and whether you appear at all.
Rewrite priority pages for extractability
Lead with a direct one-sentence answer under each H2. Add FAQPage schema. Shorten paragraphs. This is AEO.
Publish original, citable assets
Original data studies, benchmark reports, and frameworks get cited inside LLM answers far more than rewritten think-pieces. This is GEO.
Build third-party mentions
Reddit threads, niche subreddit answers, Wikipedia entries, G2/Trustpilot profiles, and guest posts on sites the models trust. GEO compounds here.
Track both surfaces monthly
Track snippet ownership in Google for AEO. Track citation share-of-voice in ChatGPT/Perplexity for GEO. Iterate where the gap is widest.
Frequently Asked Questions
Is GEO replacing SEO?+
No. Traditional SEO still drives the majority of measurable traffic. GEO and AEO are additive surfaces — they capture the slice of buyer research that now happens inside AI assistants and answer engines.
Which matters more for a small business — AEO or GEO?+
For local service businesses, AEO + local SEO wins first because answer-engine surfaces (Maps, snippets, voice) drive immediate calls. For SaaS and B2B brands where buyers research with ChatGPT and Perplexity, GEO matters more.
How do I know if ChatGPT is citing my brand?+
Manually prompt the engine with your top commercial queries each month and log which sources it cites. Tools that track LLM citations (e.g. brand monitors for ChatGPT, Perplexity, Gemini) are emerging fast.
Does schema markup help with GEO?+
Indirectly. Schema doesn't make an LLM cite you, but it strengthens entity signals and helps RAG-style retrieval surfaces parse your pages correctly, which improves the odds of inclusion.
Want to be the brand ChatGPT recommends?
Get a free AEO + GEO visibility audit. We'll show you exactly where you appear in Google, ChatGPT, and Perplexity today — and what to fix first.