The terminology around AI-driven search optimisation has become genuinely confusing. AI SEO, GEO, AEO, AIO, SXO — each term describes a real discipline, but the boundaries between them are blurry and agencies use them inconsistently. This hub exists to clear that up.

If you are trying to understand how these disciplines relate, which ones matter for your business, and where to go deeper on any of them, this page is your starting point.

The Landscape: How It All Fits Together

The shift from traditional search to AI-mediated discovery has created several overlapping optimisation disciplines. Here is how they relate:

Traditional SEO optimises your website to rank in search engine results pages. It focuses on keywords, backlinks, technical performance, and content relevance. It remains important — traditional search has not disappeared — but it no longer covers the full picture.

AEO (Answer Engine Optimisation) optimises your content to be selected as the direct answer to a user’s question. It originated with Google’s featured snippets and has expanded to cover answer-format responses across AI platforms. AEO is primarily a content formatting discipline.

GEO (Generative Engine Optimisation) optimises your entire digital presence — entity signals, content architecture, external authority — so that AI platforms cite and recommend your brand when generating answers. GEO is broader than AEO and addresses the brand-level citation problem, not just content-level answer selection.

AIO (AI Implementation Optimisation) focuses on how AI tools are integrated into your content creation, marketing operations, and business processes. It is the operational side of AI in marketing.

SXO (Search Experience Optimisation) optimises the entire user experience from search query to conversion. It bridges search visibility with on-site experience, conversion rate, and user satisfaction.

For a complete introduction to all four disciplines and how they interconnect: The GEO, AEO, AIO, SXO Framework: A Complete Introduction.

Deep Dives: Understanding Each Discipline

GEO (Generative Engine Optimisation)

GEO is the discipline most directly relevant to AI search visibility. If your buyers use ChatGPT, Perplexity, Google AI Overviews, or Claude to research providers, GEO is what determines whether your brand is named in the answer.

AEO (Answer Engine Optimisation)

AEO focuses on making your content the selected answer. It is a component of a broader GEO strategy.

The GEO vs AEO Distinction

This is the distinction that causes the most confusion. They are related but not identical:

AIO and SXO

These disciplines complete the AI search optimisation picture:

AI SEO: The Complete Picture

“AI SEO” is the umbrella term that encompasses all of these disciplines. If someone asks “What is AI SEO?”, the answer is the full framework:

Platform-Specific Guides

Different AI platforms have different citation behaviours. Understanding each platform matters:

Implementation and Methodology

Ready to implement an AI search strategy? These resources cover the practical how-to:

UK Market Context

Choosing an Agency

Talk to MarGen

MarGen specialises in GEO for regulated UK businesses. If you are trying to navigate the AI SEO landscape and want clarity on which disciplines matter for your business, start with a conversation. We will help you understand where the opportunity sits and how to capture it.