The differences in one table
| SEO | GEO / AI visibility | |
|---|---|---|
| Target outcome | A ranked link in a list | A mention inside a written answer |
| Unit of measure | Position, clicks, impressions | Mentions, citations, share of voice |
| What gets rewarded | Relevance, authority, internal links | Clarity, verifiable facts, redundant sources |
| Winning format | A page optimised for a query | An explicit answer, tables, Q&A |
| Visible competition | The top 10 | The 3-5 brands named in the answer |
| Volatility | Moderate | High: the answer varies session to session |
What stays the same
- An accessible, crawlable site: no indexing, no citation.
- One clear intent per page.
- Authority: links and mentions count in both worlds.
- Content freshness on moving topics.
What changes in the writing
SEO tolerates a long intro; GEO punishes it. A generative engine extracts the passage that answers, and it extracts a buried answer badly. Write the conclusion first, the reasoning after.
Second difference: GEO rewards what can be cross-checked. A claim that only exists on your site weighs less than one confirmed elsewhere.
Should you invest in both?
For a B2B brand, yes — but not at the same pace. SEO remains the base of measurable traffic. GEO is still barely contested in niche markets: this is the window where a few well-written pages are enough to become the cited reference.