What Is Generative Engine Optimisation (GEO), and Is It Different From SEO?

Generative engine optimisation, usually shortened to GEO, is the practice of making your content the kind of thing AI assistants quote when they answer a question. Where traditional SEO aims to earn a ranking in a list of blue links, GEO aims to earn a citation inside a written answer from ChatGPT, Perplexity, Claude or Google's AI Overviews.

The honest summary is this: GEO is roughly eighty per cent ordinary SEO done well, plus a genuinely new twenty per cent that concerns how machines read, extract and attribute your writing. It is not a scam, and it is not an entirely new discipline either. This article explains what generative engine optimisation actually asks you to do differently, and gives you three habits worth adopting this week.

What generative engine optimisation actually means

When someone asks ChatGPT or Perplexity a question, the assistant does not rank ten pages and show them. It retrieves a handful of sources, reads them, and composes a single answer, often naming or linking the sources it leaned on. GEO is the work of making your pages the ones that get retrieved, and then the ones that get quoted.

You will also see the term AEO, answer engine optimisation, used almost interchangeably. Some writers draw a distinction: AEO for structured answers such as featured snippets and voice results, GEO for generated prose. In practice the advice converges, and for a small business the difference is not worth agonising over. We have written separately about how Perplexity, Claude and Google AI Overviews choose their sources, which covers the mechanics in more depth; this article stays at the level of what to change and why.

Where GEO and SEO overlap

Most of what earns a citation from an AI assistant is the same work that earns a Google ranking, because most assistants start from a web search index. Perplexity runs live searches. ChatGPT's browsing mode does too. Google's AI Overviews draw heavily from pages that already rank. If your page cannot be found by a search engine, it cannot be quoted by an assistant that uses one.

That means the fundamentals carry over untouched:

• A crawlable, indexable site with no accidental blocks.
• Pages that answer a specific question a real person asks.
• Clear headings, so a machine can tell what each section covers.
• Evidence of expertise: you clearly do the work you write about.
• Some authority, in the form of other sites and mentions pointing at you.

If someone tells you GEO replaces SEO, they are selling something. A page that is invisible to Google is, with rare exceptions, invisible to the assistants as well.

Where GEO genuinely differs from SEO

The twenty per cent that is new comes from one fact: an assistant reads passages, not pages, and it composes rather than ranks. Three real differences follow from that.

1. The unit of competition is the paragraph, not the page

Google ranks whole pages. An assistant lifts the two or three sentences that answer the question most cleanly. A brilliant page whose actual answer is buried in paragraph nine, after a long wind-up, loses to a mediocre page whose second paragraph states the answer plainly. GEO rewards answer-first writing: state the conclusion, then justify it.

2. Being quotable matters as much as being ranked

Assistants favour passages that are self-contained, specific and attributable. A sentence like "a standard consumer unit replacement takes a competent electrician most of a working day" can be lifted whole. A sentence like "it depends on various factors" cannot. Definitions, rules of thumb, numbered steps and honest caveats are the raw material of generated answers. Vague, hedged prose is invisible to them.

3. Position three can beat position one

In classic SEO, the top result takes most of the clicks and the rest fight over scraps. Generated answers are stitched from several sources, so a page ranking third or fifth for a query can still be the one quoted, if its relevant passage is clearer than the leader's. That softens the winner-takes-all pressure, which is quietly good news for small sites competing against big publishers.

There is one uncomfortable difference too. An assistant may answer the question fully and send you no click at all. The visit becomes a mention. For a plumber or an accountant, a named recommendation inside a ChatGPT answer still has value, but it will not show up neatly in your analytics, and you should expect that.

So is GEO a rebrand?

Partly, yes. Plenty of agencies have relabelled their existing SEO service as GEO because the term is new and the searches are rising. But the underlying shift is real: a meaningful and growing share of research now happens inside assistants rather than on results pages, and writing that is optimised only for a ranking, keyword-heavy, slow to the point, hedged throughout, does measurably worse in that environment.

The fair position is that GEO is a set of emphases within SEO, not a separate discipline needing a separate budget. If your content is genuinely useful, plainly written and well structured, you are most of the way there already.

Three GEO habits to adopt this week

None of these needs a tool, a consultant or a new budget line.

1. Put the answer in the first hundred words. Open every article and service page with the direct answer to the question in the title, then spend the rest of the page earning it. Rewrite your five most visited pages this way first.
2. Write one liftable passage per page. Somewhere on the page, state your key point as a single self-contained paragraph: a definition, a rule of thumb, or a short numbered process. If a stranger pasted that paragraph into an email, it should still make sense on its own.
3. Make questions and answers explicit. Use headings that are real questions, answer each one immediately underneath, and keep each answer to a few sentences before elaborating. Pages built this way get retrieved more readily, and you can go further with a curated map of your best pages, which is what llms.txt attempts to provide.

What you probably do not need yet

A small business does not need GEO tracking software, a GEO agency retainer, or schema markup beyond the basics. It also does not need to chase every assistant separately; content that one system quotes tends to be content the others quote too, because they all reward the same clarity. Spend the time writing plainly instead.

Where Helio SEO fits in

Helio SEO writes daily articles that are deliberately structured this way: answer first, self-contained passages, question-shaped headings, so they can be ranked by Google and quoted by assistants without extra work on your part. The reasoning behind that approach is set out on our why Helio SEO page. If you enjoy writing and can apply the three habits above yourself, you do not need us for this one.