What Is GEO (Generative Engine Optimization)? A Guide for Business Owners

Generative engine optimization, or GEO, is the work of getting your business found, described correctly and recommended when someone asks an AI assistant a question. The assistants people mean are tools like ChatGPT, Perplexity, Claude and Gemini. When a homeowner asks one of them who to call about a leaking water heater, the reply comes back as a written answer that may name a few businesses. GEO is about whether your business appears in that answer and whether what it says about you is true.

This guide comes from ASP, a marketing agency for home service businesses and an Official Housecall Pro Affiliate Partner. It covers what GEO means, what the AI companies say about how their tools find information, how GEO fits next to SEO and AEO, and what an owner can realistically do. The audience for these tools has grown quickly. A Pew Research Center survey from February 2026 found that about half of U.S. adults now report using AI chatbots, and about four in ten say they use them to search for information. Our generative engine optimization service page explains how we approach this work for clients.

What Is Generative Engine Optimization?

The term started in academic research. A team of computer science researchers introduced Generative Engine Optimization in a paper first posted in November 2023. They used "generative engines" to mean search tools that pull information from several sources and summarize it into one answer using large language models. A large language model is the kind of AI model behind ChatGPT and similar tools.

Since then the label has spread, and so have its cousins. You will hear the same work called AI search optimization, AI visibility, AI SEO or LLM SEO. They all describe one job, so be wary of any vendor who tries to sell two of them to you as separate services.

For a home service business, GEO comes down to the public record. An assistant has no inside knowledge of your company, so it works from information that already exists about you, and most of that is public. That record includes your website, your reviews, your Google Business Profile and the directory listings that carry your name, address and phone number. GEO is the discipline of keeping that record complete, accurate and consistent, so that anything an assistant says about you holds up when a customer checks it.

Key Takeaway: GEO is a newer name for a familiar job: keeping the public record of your business accurate enough that an AI assistant can describe you correctly.

How Do AI Assistants Decide Which Businesses to Mention?

Nobody outside the AI companies can answer that precisely. None of them publishes a formula for choosing local businesses, and the same question can return different businesses to different people on different days. What the companies have published is how their tools find information in the first place, and that tells you a good deal about what you can influence.

OpenAI runs a web crawler called OAI-SearchBot. A crawler is a program that visits web pages and reads them, the way Google's own bot does. OpenAI's crawler documentation says OAI-SearchBot "is used to surface websites in search results in ChatGPT's search features." It also says sites that opt out of that crawler will not be shown in ChatGPT search answers, though they can still appear as navigational links.

Google's guide to generative AI search says its AI features rely on its core Search ranking systems to retrieve relevant, up-to-date web pages from its Search index. A separate Google page on AI features says AI Overviews and AI Mode may use a "query fan-out" technique, which means running several related searches across subtopics and data sources to put together one response. To be shown as a supporting link, a page must be indexed and eligible to appear in Google Search with a snippet. Google says there are no additional technical requirements beyond that.

Microsoft's search team described the shift in a May 2026 post on the Bing blog. When an AI system builds an answer, the goal becomes fetching "the best information to synthesize into a reliable, verifiable answer." The same post says abstention, meaning the system declines to answer, is a valid outcome when support is missing, stale or conflicting.

Put together, those statements describe tools that search, read and then summarize. A business with thin, outdated or contradictory information online gives them little to work with. Microsoft's wording suggests that conflicting information can work against you, since it names conflicting support as one reason a system may decline to answer.

Key Takeaway: The AI companies do not publish how they choose businesses, but their documentation shows their tools search the web and that Microsoft's systems look for information that supports a verifiable answer, which makes a clean public record the part you control.

How GEO Relates to SEO and AEO

SEO, AEO and GEO overlap heavily, and people often use AEO and GEO interchangeably. At ASP, we draw the line by platform so the definitions stay clear and our pages never tell you two different things.

Search engine optimization, or SEO, is the work of ranking in a list of search results, including the map pack for local searches. Answer engine optimization, or AEO, covers Google's own answer features: AI Overviews, AI Mode, featured snippets and People Also Ask. GEO covers the standalone assistants outside Google, such as ChatGPT, Perplexity and Claude, plus Gemini when it is used as a chat assistant.

Google sees less of a divide. Its guide to optimizing for generative AI features says AEO and GEO "are both terms you may see used to describe work specifically focused on improving visibility in AI search experiences." It adds that from Google Search's perspective, optimizing for generative AI search is optimizing for the search experience, "and thus still SEO." Google also says its generative AI features are rooted in its core Search ranking and quality systems.

Both views agree that the underlying work is shared. Accurate listings, real reviews and pages that answer a customer's question help in all three places. The bigger difference is measurement. SEO gives you rankings and impressions in Search Console, while GEO gives you, at best, a spot-check of what an assistant said on a given day. Our AEO playbook for home service businesses covers the Google side in more detail.

Key Takeaway: SEO, AEO and GEO share most of the same work, and the difference between them is which platform you want to show up on and how much of the result you can measure.

What Can a Home Service Business Do About GEO?

The useful moves are unremarkable, and that is a good sign. They are the same things that make a business easy for a homeowner to check before calling. None of them requires a special tool or a new kind of file.

• Keep your Google Business Profile complete and current. Categories, services, hours, service area and photos should match how you run the business today. Google's guide says Business Profiles can help your products and services be visible in both Google's AI responses and other Google Search results.
• Keep reviews coming in. Reviews are part of the public record people check, and a profile whose newest review is two years old describes a business that may have changed since.
• Use one name, address and phone number everywhere. Two versions of your phone number across directories means two versions of your business. Our guide to keeping your NAP information consistent walks through the cleanup.
• Write pages that answer real customer questions. Explain what you do, where you do it, what drives the cost and what tends to go wrong. Thin pages give an assistant nothing useful to repeat.
• Make sure AI search crawlers such as OAI-SearchBot are not blocked. OpenAI recommends allowing OAI-SearchBot in your site's robots.txt file, which is the file that tells crawlers what they may read. Ask whoever manages your website to confirm the setting.

This work sits on the same foundation as local SEO, which our local SEO playbook for home service businesses covers in detail. If you are deciding whether your first dollars go to your profile or your site, our comparison of Google Business Profile and website priorities walks through the order. At ASP there is no separate GEO package or line item, because the work already sits inside the local and content work we do each month.

Key Takeaway: A practical GEO checklist looks like the one a careful homeowner runs on you: a current profile, recent reviews, consistent contact details and pages that answer the question.

What GEO Cannot Promise

Nobody can guarantee that ChatGPT or any other assistant will name your business. These systems change without notice, they do not publish their criteria, and they can give different answers to different people. An agency promising a mention by a certain date is promising something it does not control.

Measurement has limits too. We cannot see how often an assistant names a business, how often it names a competitor instead, or what it tells a homeowner two towns over. The most reliable check available is a repeatable one: a fixed set of homeowner-style questions, run across several assistants on a schedule, with the results written down whether they look good or bad.

Be careful with shortcuts. Google's guide says you don't need to create new machine-readable files, AI text files, markup or Markdown to appear in Google Search, and that there is no special schema markup to add for generative AI search. It also says that "seeking inauthentic 'mentions' across the web isn't as helpful as it might seem." Google even points readers who are considering third-party AEO or GEO services to its guidance on evaluating outside SEO advice. Our post on real SEO versus fake SEO covers how to spot the tactics Google's spam rules target.

Key Takeaway: Treat a GEO pitch built on guarantees, special files or planted mentions with suspicion, because Google says such files are unnecessary for its Search and nobody controls what an assistant says.

Where to Start With GEO

The simplest first step costs nothing. Ask two or three assistants the questions your customers ask, such as who handles furnace repair in your town, and write down whether your business appears and whether the details are right. Where something is wrong, fix it at the source, whether that is your Business Profile, a directory listing or a page on your website.

From there, the work is steady maintenance. Profiles drift out of date and phone numbers change. Keeping the public record correct month after month is most of what GEO asks of a home service business, and it is the same work that supports your visibility in local search.