If you have spent any time with a digital marketing agency lately, you have probably heard terms like GEO, AEO, AISEO, and LLMO thrown around with great confidence. Generative Engine Optimization (GEO) has emerged as the preferred term among digital marketers and Search Engine Optimization (SEO) specialists, though some industry voices still use the other acronyms to describe related work. Underneath all of them is a shift in consumer behaviour that is very real and already affecting how your business gets found online.
At Foundery, we use the term GEO as our preferred label. Here is what all the terms mean, why industry leaders cannot stop debating them, and what actually matters for your marketing strategy.
Why This Matters
Search used to be straightforward. Someone typed a query into search engine (mostly Google), got a ranked list of links, and your job was to appear near the top of that list. That was SEO, and it worked.
Today, AI tools like ChatGPT, Claude, Google’s AI Overviews, Perplexity, and Gemini synthesize answers directly from across the web and present a single confident response. If your business is not part of that answer, you are invisible in a channel that is growing fast. Research by Fractl and Search Engine Land found that 82% of consumers now find AI-powered search more helpful than traditional search. That number is only going in one direction.
Defining Key Terms
Here is a plain-language breakdown of the terms you will encounter and what each one actually means:
Generative Engine Optimization (GEO)
GEO is the process of optimizing your website content to boost visibility in AI-driven search engines such as ChatGPT, Claude, Perplexity, Gemini, and Copilot. It is the most widely recognized term in the industry, with 84% of marketing professionals identifying it in a late 2025 survey, and 42% choosing it as their go-to label for this category of work.
Answer Engine Optimization (AEO)
AEO focuses on structuring content to appear in AI tools, featured snippets, voice search results, and AI-generated answer boxes. It is often described as the tactical execution layer beneath GEO, with a specific emphasis on question-and-answer content formats.
Artificial Intelligence SEO (AISEO)
AISEO combines traditional SEO tactics with newer techniques aimed at capturing AI Overviews and appearing in AI-driven search. It is the highest-volume search term in this category, likely because the phrase itself is so intuitive: it signals continuity with classic SEO while flagging the AI evolution. Many practitioners use AISEO and GEO interchangeably.
AI Search Optimization (AISO)
AISO is a broad catch-all for optimizing content for AI-powered search. It appears frequently in job postings and hiring language, where it functions as a general signal that a role involves this category of work, regardless of which specific approach a team takes.
Large Language Model Optimization (LLMO)
LLMO is a more technical term used primarily by practitioners who work directly with AI systems. It refers to optimizing content so that large language models recognize a brand as a credible, authoritative source. It is used mostly in specialist and technical circles.
What Industry Leaders Are Saying
GEO has earned its place as the dominant term among digital marketers and SEO professionals, and leading industry voices have been clear about why. Generative AI does not simply retrieve and rank content the way traditional search engines do. It synthesizes information from multiple sources and presents a single, confident answer. That requires a different strategic approach, and GEO names that approach accurately.
Where you will still hear variation is in how practitioners distinguish between GEO and AEO specifically. Some define AEO as a subset of GEO, focused on the tactical work of optimizing for answer boxes and featured snippets. Others use them interchangeably. AISEO and AISO appear more often in job postings and hiring language as broad signals that a role involves this category of work. For most business conversations, GEO covers the territory cleanly.
What Businesses Need to Be Doing Right Now
Regardless of which term you prefer, the strategic priorities are the same. Here is where to focus your attention:
- Keep investing in SEO. Organic search still drives a significant amount of traffic for most businesses. The fundamentals of search optimization have not changed.
- Add GEO to your strategy. Brands building AI visibility now will have a meaningful advantage as adoption grows.
- Prioritize content quality above all. AI systems cite sources they trust. That trust is built through content that communicates expertise, accuracy, and consistency.
- Ask your agency about GEO directly. A clear, confident answer is a good sign. Promises and guarantees about AI should be a red flag. Confusion is useful information too.
H2: Get Found Everywhere Your Customers are Searching
AI search is not a future trend to plan for. It is already shaping how your customers find businesses like yours, and the brands investing in GEO today are building a visibility advantage that will compound over time.
Foundery’s search optimization services are built for this new reality. We combine the proven fundamentals of SEO with GEO strategies designed to get your brand cited, referenced, and recommended by AI tools. That means building your brand’s topical authority, strengthening your digital footprint across the web, and creating content that AI systems recognize as credible and worth surfacing.
If you are a business owner or marketing manager who wants to show up where your customers are searching, Foundery is the partner to make that happen.
