SEO is dead because of AI.
AI tools still rely heavily on search results and well-ranked pages. SEO is the foundation the others stand on.
Comparison
GEO vs SEO vs AEO vs AIO: what is the difference?
SEO gets your pages ranked in search results. AEO gets your words used as the direct answer to a question. GEO gets your business named and cited in answers written by AI tools like ChatGPT and Gemini. AIO is a broad label for AI-focused work, often meaning Google’s AI Overviews. All four build on the same foundations.
Last updated · Written by Kanchana Delgoda, Co-founder, Digital Marketing & Growth Hacking Specialist
Compared
GEO, SEO, AEO and AIO side by side
What each term means, where the result appears and what counts as winning.
| Term | What it is | Where it shows | What it measures |
|---|---|---|---|
| SEO (search engine optimisation) | Making pages easy for search engines to find, understand and rank in their normal results. | Google and Bing results pages, including Google Maps for local searches. | Rankings, clicks, organic traffic and the enquiries it brings. |
| AEO (answer engine optimisation) | Shaping content so a search engine or assistant can lift it as the direct answer to a question. | Featured snippets, “People also ask” boxes and voice assistants. | How often your page is used as the answer. |
| GEO (generative engine optimisation) | Getting a business named and cited in answers written by AI tools. | ChatGPT, Gemini, Perplexity, Copilot and Google’s AI Overviews and AI Mode. | Mentions and citations across the questions customers ask, and visits from AI tools. |
| AIO (AI optimisation) | A broad label for all work aimed at AI systems; often used for Google’s AI Overviews in particular. | Mostly Google’s AI Overviews and AI Mode; sometimes any AI answer. | Appearances and citations in AI-generated results. |
Why are there four terms for one job?
Each term arrived with a new place where people find answers. SEO came with search engines, AEO with featured snippets and voice assistants, and GEO and AIO with AI tools that write answers. The underlying job has not changed: be the clearest, most trustworthy answer to the questions your customers ask.
The overlap is large. AI tools often read the pages that rank well, answer passages are lifted from well-structured pages, and every one of them rewards consistent facts about the business behind the page.
Which should a Sri Lankan business pay for first?
It depends on where your customers are finding businesses like yours today. A business chosen from Google Maps, such as a restaurant or a clinic, usually gains most from local SEO first. A business researched carefully before purchase, such as a school, a hotel or an agency, gains more from pages that answer questions well, which serves SEO, AEO and GEO together.
What rarely works is buying one in isolation. GEO without a site that ranks, or SEO without consistent facts across the web, leaves the other half of the job undone. That is why our team plans them as one piece of work.
Common misconceptions
What do people get wrong about it?
GEO and AIO are completely different services.
They describe overlapping work. The labels differ more than the methods.
You need four separate agencies.
The same pages, facts and structure serve all four. Splitting them usually creates gaps.
Evidence
What does the research say?
Brands cited inside Google’s AI Overviews had higher organic click-through rates (0.70%) than brands that were not (0.52%) in Q3 2025.
Seer Interactive, September 2025 update45% of consumers use generative AI tools for local business recommendations.
BrightLocal, Local Consumer Review Survey 2026
Questions
Frequently asked questions
SEO is about ranking your pages in search results. GEO is about being named in the answer an AI tool writes. One gets you on the list; the other gets you into the conversation.
AIO usually stands for AI optimization, a broad label for work aimed at AI systems. Many people use it to mean optimizing for Google’s AI Overviews in particular.
Not quite. AEO is about having your words used as the direct answer, often on the search page; GEO is about having your business named in AI-written answers. Most of the habits are shared.
Most businesses need the foundations all four share: pages that answer real questions, a site machines can read, and consistent facts across the web. How much weight each gets depends on where your customers look.
Usually SEO, because AI tools draw heavily on pages that rank and on well-structured sites. GEO then widens the work to the other sources AI tools read.
Read next
Where to go from here
What is GEO?Generative engine optimization, explained.What is AEO?Answer engine optimization, explained.Google AI Overviews explainedWhat they are and what they change.GEO, AEO and AIO servicesHow our team helps businesses get named in AI answers.AI search FAQTwenty answers on GEO, AEO, schema and entities.Not in the Answer (free book)Why AI recommends your competitors, with the research behind it.
Next step
Talk to our team about where to start
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