Two agencies can propose “GEO” programs that contain different work. One may monitor brand mentions; another may rewrite product pages; a third may mainly generate articles. The acronym does not tell you what you are buying.
AI SEO, GEO, AEO, LLMO, LLM SEO, and LEO overlap in everyday use. There is no need to declare a terminology winner to build a useful search program. Define the surface, output, and measurement instead.
A practical terminology map
| Term | Common expansion | Useful question to ask |
|---|---|---|
| AI SEO | AI search optimization, or AI-assisted SEO | Are we improving AI visibility or using AI to perform SEO tasks? |
| GEO | Generative engine optimization | Which generated-answer surfaces are in scope? |
| AEO | Answer engine optimization | Does this include featured snippets, assistants, or both? |
| LLM SEO | Large language model SEO | Are we discussing public web retrieval or model behavior? |
| LLMO | Large language model optimization | Is the buyer a marketer or an application engineer? |
| LEO | Often used for LLM engine optimization | What exact work does the author mean here? |
| AIO | AI optimization, with several other uses | Is this a process label or shorthand for AI Overviews? |
These are working interpretations, not formal standards. Spell out a term the first time you use it, especially in a contract or reporting specification.
Illustrative report with fictional data and workflow examples. This is not a customer result or a preview of a specific product screen.
Separate two meanings of AI SEO
Using a model to draft title alternatives is AI-assisted SEO. Measuring whether a search-enabled assistant cites your product documentation is AI search visibility work. A team can do one without doing the other.
This distinction affects the software you need. Writing tools support research and production. Monitoring tools collect observations. Technical auditing checks access and implementation. A single vendor may cover several jobs, but the deliverables should remain clear.
Our ChatGPT for SEO workflow covers assistance with editorial work. The AI search visibility guide covers measurement of generated answers.
Where GEO and AEO overlap
GEO emphasizes generated responses that synthesize source material. AEO is often used more broadly for making a page useful as a direct answer, including conventional answer features.
Both can lead to sensible work: accurate source material, clear explanations, accessible pages, and evidence-based measurement. Neither label establishes a separate set of universal ranking rules.
The GEO research paper is a specific experimental contribution to this subject. It should not be read as a certification of every service sold under the acronym.
Why search-interest charts can mislead
Short acronyms have meanings outside marketing. A search for “GEO” may refer to geography, a company, or a product; “AIO” can refer to computer hardware. Comparing broad terms without disambiguation can make a popularity chart meaningless.
If you publish a terminology trend, preserve the actual export, query definitions, country, date range, and whether you used search terms or topics. Search interest is normalized within the selected comparison; it is not automatically an absolute count of buyers looking for a service.
This guide does not invent search-volume figures or claim one label has won. The buyer's ability to understand the scope matters more than an unsupported popularity ranking.
Replace the acronym with an acceptance criterion
A useful brief might say: “Monitor these buyer questions on the agreed platforms, preserve the source URLs and raw answers, identify factual gaps on these pages, and report the same sample after publication.”
That specifies work a team can inspect. “Optimize us for LLMs” leaves room for almost any activity and no clear completion standard.
Ask whether the engagement includes publishing, engineering fixes, third-party research, and measurement. Establish who owns the collected data and how you can export it. These details survive a change in terminology.
Choose language your team can use consistently
Use a short internal definition and place it in the reporting guide. When a new vendor introduces another label, map it to existing work before adding a new budget line.
For the underlying methods, continue with generative engine optimization, answer engine optimization, and the AI SEO operating plan.
