GEO vs SEO: Is Your Agency Selling You AI Visibility It Can’t Prove?

SEO proposals used to promise rankings and traffic. In 2026, a growing number promise something else too: visibility inside AI Overviews, ChatGPT, Perplexity and Google’s AI Mode. It is often labelled GEO, generative engine optimisation, and it is increasingly bolted onto a standard SEO package as an extra line item.

The problem is that GEO is much harder to sense-check than a keyword ranking. Anyone can look up whether a page sits on page one of Google. Far fewer businesses know what a genuine AI-visibility citation looks like, or how to ask an agency to prove it can actually deliver one.

This guide is about telling the difference between an agency that has genuinely adapted its approach, and one that has simply added a fashionable line to its price list.

What GEO Actually Means, Beyond the Buzzword

Traditional SEO optimises a website so it ranks well in a list of results a person clicks through to visit. GEO optimises content so that it gets pulled into a generated answer, a summary an AI system writes and shows directly, often without the user clicking through to the source at all.

That difference matters commercially. Being cited inside an AI Overview or a ChatGPT answer can put a brand in front of a buyer at the exact moment they are deciding, but it does not generate a website visit the way a normal search result does. Analysts have pointed to a meaningful and ongoing shift of query volume away from traditional results pages and toward these AI-generated answers, so the incentive to chase this kind of visibility is real. It is also new enough that very few agencies have an established track record in it.

A Quick Note on Terminology

You will see this described as GEO, AI SEO, AI search optimisation or AI visibility, depending on which agency is pitching it. None of these terms are standardised yet, which is itself worth noticing. A discipline with an agreed methodology usually settles on agreed language a lot faster than this one has.

The New Line Appearing in SEO Proposals

If a proposal has landed recently with a line like “AI SEO”, “AI visibility optimisation” or “GEO strategy” sitting alongside the usual technical audit and content plan, that is not an isolated case. It is becoming a standard add-on, priced anywhere from a modest monthly uplift to a significant package in its own right.

The trouble is that this is exactly the kind of claim that is easy to make and hard to independently verify, at least until you know what to ask for.

How to Tell a Genuine Claim From a Buzzword

A few direct questions will tell you more than the proposal’s wording ever will.

• Can they show a specific brand, ideally their own, being cited in an AI Overview, ChatGPT or Perplexity answer, with a screenshot or export as evidence?
• Do they explain how they will measure AI citations going forward, given that none of the major platforms offer a dashboard as standard the way Google Search Console does for traditional search?
• Have they run a baseline check of where your brand currently stands in AI-generated answers, before proposing any work to improve it?
• Can they describe, in plain terms, what they will actually change on your site or in your content to improve the odds of being cited?
• Are they positioning this as an addition to solid SEO fundamentals, or as a replacement for them?

If the honest answer to most of these is no, the claim is aspirational at best.

What the proposal says	What real evidence looks like
“We optimise for AI search”	A specific citation, in a specific AI tool, for a specific brand, with a screenshot
“GEO is included at no extra cost”	A clear description of what that activity actually involves, separate from standard SEO tasks
“We’ll get you cited in AI Overviews”	A baseline check of your current AI visibility before any work begins
“Our AI SEO package”	A defined way of tracking citations over time, since no standard analytics tool does this yet

An agency that cannot show you a single AI citation, for any brand, including its own, is asking you to pay for a skill it has not yet demonstrated it has.

Why This Is Happening Now

None of this means GEO is meaningless, or that agencies raising it are acting in bad faith. The shift toward AI-generated answers is real: industry analysts have pointed to a meaningful decline in traditional search volume as AI Overviews and chat-based search tools take a growing share of queries, and a large proportion of searchers now regularly see AI-generated summaries alongside standard results. Agencies that ignore this entirely may be under-serving clients within a year or two.

The issue is not that GEO is being discussed. It is that a service without an established methodology is sometimes being sold with the same confidence as one that has been refined over a decade. A newer discipline deserves more scrutiny, not less, precisely because there is less of a track record to measure it against.

What a Legitimate GEO Add-On Should Look Like

• A baseline audit of your current AI visibility before any work is proposed
• Content and structural recommendations that are explained, not just asserted, such as clearer direct answers, structured data, and more citable sourcing
• Realistic framing, as an addition to solid SEO fundamentals rather than a shortcut around them
• A defined way of checking progress, even if that is manual screenshotting each month, rather than a vague promise to “monitor AI search”
• No guarantee of citation in any specific AI tool, since none of these platforms are within an agency’s control

Most of this comes back to the same fundamentals covered in our guide on how to choose an SEO agency: clear deliverables, honest measurement, and a refusal to guarantee things nobody can guarantee. GEO is simply being tested on a newer front, and it is worth pricing with the same scrutiny covered in our guide to what SEO should cost, since a vague add-on fee deserves the same questions as any other line item.

Before You Sign

If a proposal in front of you includes an AI visibility or GEO component, treat it the same way you would treat any other line item: ask what it costs, ask what it actually includes, and ask what evidence backs the claim. A confident answer, backed by something you can see, is a good sign. A confident answer with nothing behind it is not.

If you would like a second, independent read on whether a proposal’s AI-visibility claims stack up against the work actually described, that is exactly the kind of check we build into every Decision Pack, alongside the standard scope, pricing and contract review.

If you want to see how hard it is to pin down what anyone actually pays for search visibility, even with legally mandated transparency, our data report on how much UK councils spend on SEO and digital marketing checked 1.5 million public payment records and found the category barely exists as a standalone purchase.