The short answer
AEO (answer engine optimization) is the older term. It grew up around featured snippets and voice assistants that read out one direct answer. GEO (generative engine optimization) focuses on AI tools that write new answers, like ChatGPT and Perplexity. Today the two overlap heavily. Neither has an official definition, so focus on the work, not the label.
- AEO started with featured snippets and voice search; GEO started with AI-written answers.
- In day-to-day practice, most AEO and GEO tasks are the same.
- GEO puts more weight on brand mentions across many sources and on comparing yourself with competitors.
- Pick the term your team understands, then measure real answers to real buyer questions.
Where do the terms AEO and GEO come from?
AEO appeared when search engines started answering questions directly. Featured snippets, the boxed answer above Google results, were the early target. Voice assistants that read one answer aloud made it more popular.
GEO is newer. The term gained wide use after an academic paper on generative engine optimization in late 2023. It describes optimizing for AI systems that write a fresh answer from several sources.
Agencies and tool makers now use both words, sometimes for the same service. Some also use LLMO, short for large language model optimization.
AEO vs GEO side by side
The differences are mostly about emphasis. The table shows where each term traditionally puts its focus.
| AEO | GEO | |
|---|---|---|
| Origin | Featured snippets, People Also Ask, voice assistants | AI chat and AI search tools |
| Typical answer | One extracted passage from one page | A new answer written from several sources |
| Main target | Being the quoted answer | Being named, cited and described well |
| Content style | Short, direct answers to clear questions | Clear answers plus consistent brand facts everywhere |
| Off-site work | Less central | Central: mentions, reviews, directories, comparisons |
| Competitor view | Who holds the snippet | Which brands appear in the same answer |
How much do AEO and GEO overlap in practice?
A lot. Both reward pages that answer a question clearly near the top. Both need crawlers to reach and read your content.
Both benefit from structured data in JSON-LD, the format Google recommends. Both suffer when your facts differ between your site, listings and reviews.
If an agency sells AEO and another sells GEO, ask to see the task list. You may find the two lists are almost identical.
Judge any AEO or GEO service by what it measures and changes, not by which acronym it uses.
Where do they really differ?
The real difference is how wide the lens is. Classic AEO looks mostly at your own page and one question.
GEO looks at the whole picture an AI model builds about your brand. That includes what other sites say, which competitors appear beside you, and the tone of the description.
Take a law firm in Leeds as an example. AEO work would make its fees page answer common cost questions clearly. GEO work would also check that legal directories and review sites describe the firm the same way.
- AEO question: does our page get quoted for this query?
- GEO question: when buyers ask AI for options, are we named, and how are we described?
- GEO adds tracking over time, because AI answers change between runs and between weeks.
Which one do you need?
You do not need to choose. Do the shared basics first: clear answers, crawlable pages, accurate structured data.
Then add the wider GEO work if buyers research in AI tools. That means earning mentions on trusted sources and checking how answers compare you with rivals.
WebValet uses the GEO framing because it tracks brands against competitors inside AI answers. Pro does this weekly on ChatGPT, Gemini and Perplexity.
The verdict: same family, different emphasis
AEO and GEO are close relatives. AEO is about being the answer. GEO is about being recommended and described accurately across many AI answers.
Use whichever word your team or clients understand. What matters is that you check real answers to real buyer questions and act on what you find.
Questions people ask
Is AEO outdated now that GEO exists?
No. Its core advice, answering questions clearly and directly, still works. GEO simply widens the view to brand mentions and competitors across AI tools.
Are AEO, GEO and LLMO different services?
Mostly they are different names for overlapping work. Ask any provider for their exact tasks and how they measure results. The task list tells you more than the label.
Do featured snippets still matter?
They can, for queries where Google still shows them. Clear, direct answers that win snippets also tend to be easy for AI tools to quote.
Which term should I use with clients or my team?
Use the one your audience already knows. Many marketers now say GEO for AI answers, while some still say AEO. Define the term once, then talk about outcomes like mentions and citations.