eMarketer just published a FAQ on GEO (generative engine optimization) and AEO (answer engine optimization), and where both overlap with traditional SEO in 2026. I read it twice. The headline takeaway is not the acronym soup. It's that a mainstream marketing publication is finally saying out loud what we've been telling clients since 2024.
Here's what eMarketer published, and then here's where I think they stopped short.
What eMarketer Actually Said
The eMarketer FAQ frames GEO and AEO as adjacent disciplines, not replacements for SEO. The piece walks through how AI systems like ChatGPT, Perplexity, and Google AI Overviews select sources, and concludes that the inputs are mostly the same inputs Google has been ranking for years (eMarketer, 2026).
The key points eMarketer makes:
- GEO is about being cited inside AI-generated answers.
- AEO is about being the source for direct answer formats (featured snippets, voice, AI summaries).
- Both depend on clear content structure, strong topical authority, and clean technical signals.
- The overlap with SEO is roughly 70 to 80 percent on the inputs side.
- Schema, entity clarity, and citations matter more in AI surfaces than they ever did in classic 10-blue-link search.
They also flag that the measurement story is messy. AI citations don't show up cleanly in Google Search Console or GA4. Brands are stitching together visibility tools, brand mention tracking, and referral patterns to piece it together.
The 66th Take: They're Right, and It's Worse Than They Said for Lazy Agencies
I have been telling clients this for 2 years. GEO is 80 percent really good SEO and 20 percent entity management, citation building, and structured review signals. eMarketer just put a number on what we've been operating on.
So if the inputs overlap, what is the actual difference? Where does the 20 percent live?
Where SEO and GEO Diverge
| Discipline | Primary Output | Where Effort Goes | How You Measure It |
|---|---|---|---|
| Classic SEO | Rankings, organic clicks | Content depth, links, technical | GSC, rank trackers |
| AEO | Featured snippets, voice answers | Question-led structure, schema | SERP feature tracking |
| GEO | Citations inside AI answers | Entity clarity, review signals, brand mentions on third-party sites | Visibility tools, brand mention tracking, referral patterns |
What Most Brands Are Still Getting Wrong
The eMarketer piece is correct on the inputs. Where I think it stops short is the implication that brands should now run 3 separate strategies. That's how agencies sell 3 separate retainers. It's not how the work actually plays out.
Here is what I've watched happen with real clients across 2024, 2025, and the first half of 2026:
- The fundamentals carry most of the weight. A client we wrote about in the WashTech compounding curve piece was flat on classic SEO metrics for 9 months, then 5x'd revenue. During that flat period, their AI citation rate climbed steadily. Same content, same authority signals, 2 different surfaces rewarding the same work.
- The 20 percent that is uniquely GEO is unglamorous. It's getting your brand mentioned in the right third-party sources, fixing entity confusion across the web, structured review signals, and making sure your schema actually tells AI systems what you do. Most agencies don't want to sell this because it's slow and hard to dashboard. We covered the measurement problem in the reporting test that killed our Looker dashboards.
- AI-generated content is the thing that gets punished, not SEO itself. Every algorithm cycle in the last 18 months has rewarded specific, well-sourced, expert-led content. The brands losing visibility are the ones who scaled generic AI output. The brands gaining citations in ChatGPT and Perplexity are the ones with real authority on a tight topic.
What Local Businesses and Growing Brands Should Actually Do
If you're running a local business or a growing brand and you read the eMarketer FAQ this week, here's the order of operations I'd give you:
- Stop running 3 separate strategies. Run 1 strategy with 3 surfaces in mind. Your content, your schema, and your authority signals should serve Google, AI Overviews, and ChatGPT at the same time.
- Fix the basics before chasing AI citations. If your pages aren't indexed, your title tags are weak, or your Google Business Profile is half-filled, no amount of GEO work will save you. Start with a basic audit and GBP optimisation.
- Get your entity right. AI systems need to understand what your brand is, who it serves, and where. That's schema, consistent NAP, and brand mentions on the right third-party sources. If you want a deeper read on this, see how to get cited by ChatGPT.
- Stop paying for tools that report on what you can't change. Visibility dashboards are useful as a temperature check. They are not a strategy. We get into the trap on the DemandSage tool roundup commentary.
- Reviews are still SEO and now also GEO. Structured review signals show up in AI summaries more than most brands realise. See why your Google reviews are an SEO asset.
Where I Disagree With the Framing
The FAQ format makes GEO and AEO sound like new skills to learn. For a brand that has been doing real SEO, they are not new skills. They are a refocusing of the same skills onto a slightly different surface. The brands that struggle in 2026 are the ones who never did real SEO in the first place. They bought rankings through link schemes or scaled thin content, and now the AI surfaces are exposing the same gaps Google has been exposing for years.
If you're hiring an agency right now and they're pitching GEO as a brand-new service line at 2x the price of SEO, ask them to show you a client where they earned AI citations without also moving classic organic rankings. In our experience, that client doesn't exist. The work compounds across both surfaces because the inputs are the same.
eMarketer got the overlap number right. The next step for the industry is admitting that the gap is smaller than the marketing around GEO suggests, and that the brands winning in AI search are the ones who've been doing the boring work for years.
If you want to see how we structure a single retainer that serves Google, AI Overviews, and ChatGPT at the same time, our GEO service page walks through the methodology, or get in touch and we'll show you what it looks like on your site.
