Answer Engine Optimisation (AEO) and SEO are complementary disciplines, not competing ones. Understanding exactly how they differ — and where they overlap — helps B2B marketing teams invest in both without duplicating effort.
The Core Difference
SEO optimises for search engine results pages — rankings, click-through rates, and organic traffic. AEO optimises for AI-generated answers — citations, recommendations, and brand mentions in tools like ChatGPT, Perplexity, and Google AI Overviews.
Where They Overlap
- High-quality, authoritative content
- Structured data and schema markup
- Strong backlink profiles and brand authority
- Fast, well-structured websites
Where They Diverge
SEO focuses on keyword rankings and SERP features. AEO focuses on how AI models understand and reference your brand entity. The signals are related but not identical.
The Bottom Line
Don't choose between AEO and SEO. Invest in both — starting with the foundations they share, then layering in AEO-specific optimisations like entity definitions, citation networks, and AI-readable content structures.
Continue your AEO learning
- The complete guide to Answer Engine Optimisation — the foundational pillar covering definitions, signals, and where to start.
- The AEO Maturity Model — five levels of AI search readiness, from keyword-only to programmatic authority.
- Why your B2B website isn't getting cited in AI search — the practical, structural fixes that move you from invisible to cited.
If you'd rather skip the DIY route, here's how we run AEO retainers for B2B teams that want to be the cited answer in their category.