What Is Generative Engine Optimization (GEO)?

Ask ChatGPT for “the best project management tool” and it names three or four brands, then stops. The brands it skips are invisible to that buyer. Most of them never find out it happened.

Generative Engine Optimization (GEO) is the work of finding out whether AI engines name your brand — and giving them reasons to. This page explains what GEO is, why it matters now, how it relates to SEO, and what you can actually measure.

What Generative Engine Optimization (GEO) means

Generative Engine Optimization (GEO) is the practice of getting your brand mentioned and cited inside the answers that AI engines generate. The engines are tools like ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews, and Copilot. When a buyer asks one of them a question, it writes a short answer and names a handful of options. GEO is about being one of those named options.

That is a different goal from ranking a page. A search engine returns a list of links and lets the user choose. A generative engine reads the web, decides for the user, and hands back a recommendation. GEO is how you influence that recommendation.

Why GEO matters now

Buyers are starting their research inside AI engines instead of a search box. They type a full question, read the generated answer, and act on the two or three brands it names. The other brands don't get a second look.

This changes the stakes in two ways. First, the answer is short, so being “on page one” is no longer enough — there is no page one, only a named shortlist. Second, you may have no idea where you stand. A search engine shows you your rank if you go looking. An AI engine gives a different answer to every user and keeps no public scoreboard. If ChatGPT names a competitor 18% of the time and names you 3% of the time, nothing tells you that unless you measure it.

GEO vs SEO — how they differ

SEO and GEO answer different questions:

• SEO asks: does my page rank in the list of links a search engine returns?
• GEO asks: does an AI engine name and cite my brand inside the answer it writes?

SEO is about position on a results page. GEO is about being recommended inside a generated paragraph. The two overlap — engines often pull from pages that already rank well, and clear, well-structured content helps both. But they are not the same, and strong SEO does not guarantee you get named.

GEO complements SEO; it doesn't replace it. People still search Google, and those links still drive traffic. The shift is that a growing share of buyers now read an AI answer first, so you need to know how you show up in both places.

What to measure in GEO

Three signals matter, and they're easy to confuse:

• Mentions — how often an engine names your brand in its answer, whether or not it links to you. This is your share of attention.
• Citations — how often an engine links to your site as a source. A mention without a citation means the engine knows you but sent the click elsewhere.
• Share of voice— how often you're named compared with named competitors for the same set of questions. Being mentioned 3% of the time means little until you learn a rival sits at 18%.

Each of these varies by engine and by country. ChatGPT may name you often while Gemini ignores you. You may lead in the US and trail in the UK. A single average hides that. Useful GEO measurement breaks the numbers down per engine and per country so you can see where the gaps actually are.

How to improve your GEO visibility

GEO tactics are still young, and they vary by engine, so treat anyone promising a guaranteed formula with caution. A few approaches hold up:

• Answer the questions buyers actually ask. Engines reward content that resolves a real question directly, not pages padded for keyword count.
• Be citable. Clear claims, specific numbers, and well-structured pages are easier for an engine to quote and link.
• Cover the comparison and “best X” queries. These are the prompts that trigger a named shortlist, so they're where being absent costs the most.
• Measure first.You can't tell whether a change worked unless you tracked your mentions, citations, and share of voice before and after.

Measurement-first matters most. GEO advice changes monthly; a baseline you can compare against doesn't.

Where Geotally fits

Geotally is the measurement layer. It tracks whether six engines — ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews, and Copilot — name and cite your brand, broken down by country, with share of voice against the competitors you choose. A weekly digest shows what moved.

The point is to track before you optimize. Set a baseline, make a change, and see whether your mentions and citations actually rose. Signup is free, so you can see where you stand before deciding what to fix.

Weighing tools? Compare Geotally with Profound, Peec, Otterly, and Semrush AI Visibility, or see the plans and pricing.