GEO vs SEO: What Actually Changed, and What Still Works
The difference between GEO and SEO is where you show up: SEO ranks your pages in Google's list of links, and GEO gets your brand named and cited inside AI answers from ChatGPT, Gemini, Perplexity and Google's AI Overviews. Most of the groundwork is shared, but what counts as a win, and how you measure it, is not.
If you run marketing for a DTC brand or a B2B software company, you have probably been told that SEO is fading and GEO is the new thing to buy. Neither half of that is quite right. Below we explain what actually changed, what still works, and how we measure both on our own site, starting from our own before picture.
How Are GEO and SEO Different?
SEO and GEO use many of the same inputs, but they aim at different results: SEO earns a position in a list of links, and GEO earns a mention inside an answer. With SEO, a buyer sees your page and decides whether to click. With GEO, an AI tool reads pages like yours and decides whether to name you in what it writes.
| Aspect | SEO | GEO |
|---|---|---|
| Where you show up | Google's list of results | Inside the answer from ChatGPT, Gemini, Perplexity or Google's AI Overviews |
| What a win looks like | A high position, then a click to your site | Your brand named, or your page cited as a source |
| What the engine works from | Your page, the links pointing to it, and signals of trust | Pages it can find and read, condensed into one answer |
| How you measure it | Rankings, impressions and clicks in Google Search Console | A fixed set of buyer questions, asked on a schedule, with who got named recorded |
The line between the two is blurry. Google's AI Overviews sit on the same results page as the links, so one search can put you in both places, or in neither.
What Actually Changed When Search Moved Into AI Answers?
The big change in search is that a growing share of searches now end with an AI-written answer, so a buyer can learn about your category without clicking a link. That shifts the goal from being found to being named.
15.69%
Of keywords showed a Google AI Overview in November 2025, in a study of more than 10 million keywords.
Semrush AI Overviews Study, December 2025
80%
Of consumers rely on zero-click results in at least 40% of their searches.
Bain & Company, February 2025
Both numbers need context. Semrush's own series swung from 6.49% of keywords in January 2025 to 24.61% in July, then back to 15.69% in November, so the share moves as Google adjusts. Bain's figure comes from one survey of 1,117 people in December 2024, and Bain estimates that zero-click behavior is cutting organic web traffic by 15% to 25%.
Across the keywords we target, AI answers are already the norm. When we built our content plan for all six of our service lines, 150 of the 164 keywords we chose showed an AI Overview on Google (Semrush, US, August 22, 2026). A later Semrush study found AI Overviews grew an average of 71% on searches with commercial intent, the kind people run while comparing what to buy, between November 2025 and April 2026.
What Still Works From SEO?
Most of what makes a page rank on Google also makes it usable for AI answers: a page search engines can crawl, a clear structure, accurate claims and a site people trust. Google says this directly for its own AI features.
There are no additional requirements to appear in AI Overviews or AI Mode, nor other special optimizations necessary.
The same page says all existing SEO fundamentals continue to be worthwhile, and that there is no special schema.org structured data you need to add. That guidance covers Google Search only. ChatGPT, Gemini and Perplexity each choose their sources their own way.
So is GEO replacing SEO? No. Good SEO is what gets your pages found and read in the first place, but ranking well does not guarantee an AI tool will name you. On our own site we keep the door open: our robots.txt welcomes GPTBot, ClaudeBot, PerplexityBot and the other main AI crawlers by name.
Why Do People Search One Way and Ask AI Another?
People type short phrases into Google and ask AI tools full questions, so the words you need to rank for and the question you need to be cited for are rarely the same. Keyword tools like Semrush measure the Google side.
What People Type vs What They Ask
US Google searches a month. Semrush, US database, pulled September 26, 2026.
When we audited our own visibility in August 2026, we looked up all 20 of our buyer questions in Semrush exactly as a person would ask them. 17 of the 20 returned no search data at all. Our read: that doesn't mean nobody asks them, it means keyword tools measure Google searches, not prompts typed into AI tools.
So we track two things for every topic. The Google keyword carries the search volume, and the question is what an AI tool actually gets asked. For this post, those are "geo vs seo" and "What is the difference between GEO and SEO?"
Is AEO Different From GEO?
AEO (answer engine optimization) and GEO describe mostly the same work: making your content the answer an AI tool gives. We call it GEO. Our GEO + SEO service covers that work, and we don't sell AEO as a separate line item.
The names differ because the industry hasn't settled on one. You will also see AIO, LLM SEO and AI search optimization used for the same idea. That's our read of how the terms are used, not an official definition.
Tip
If a proposal lists GEO and AEO as two separate line items, ask what work is different between them. If nobody can name it, you are paying twice for one job.
What Does GEO Change About How You Write a Page?
GEO asks you to write each section so its first sentence can be lifted out and quoted on its own, with the source and the number attached to the claim. An AI tool that condenses many pages into one answer needs sentences that still make sense out of context.
Hard to Quote
Leans on the Heading
"There aren't any extra requirements." Extra requirements for what, and says who?
Easy to Quote
Carries Its Own Subject
"Google says there are no additional requirements to appear in AI Overviews." The subject and the source travel with the claim.
There is research behind this. A study from Princeton University and IIT Delhi, presented at KDD 2024, found that edits like adding citations, quotations and statistics raised a page's visibility in generative engine answers by up to 40%. Keyword stuffing, an old SEO habit, scored below the unedited pages.
Treat that as direction, not a guarantee. The main tests ran on a simulated engine built on GPT-3.5, with a repeat test on Perplexity, not on today's ChatGPT or Gemini. A 2026 position paper at ICML makes the same warning in general: results from offline test setups and from live AI systems can differ. We write our own posts this way, and we add structured data to each one as labelling for machines, not as a ranking trick.
How Do You Measure GEO Next to SEO?
You measure SEO with rankings, impressions and clicks in Google Search Console, and you measure GEO by asking AI tools a fixed set of buyer questions on a schedule and recording who they name. The questions stay word for word the same each time, or the comparison means nothing.
We run that check on ourselves first. On August 22, 2026, we asked 20 real buyer questions on Google, ChatGPT, Gemini and Perplexity, without naming our company, and recorded who each one named instead.
For the question this post answers, Google drew on Informa TechTarget, Contentful and Semrush, and Perplexity drew on Coursera, Evergreen and ClickForest. ChatGPT and Gemini showed no sources for it that day. One round on one day is a signal, not a rate, which is why we put the before picture on the record before the after.
When Won't GEO Help You?
GEO won't help much if your buyers don't ask AI tools for recommendations yet, or if your site has nothing worth citing. In those cases, the basics come first.
GEO Is Worth It When
- Your buyers ask AI tools which product, tool or partner to choose.
- You have real expertise, data or results you can publish.
- Google already crawls and indexes your key pages.
Fix These First
- Google can't crawl or index your key pages.
- Your site says little a buyer couldn't read on a competitor's site.
- You need results by a fixed date. Nobody can promise when an AI tool will start naming you.
If you're not sure which side you're on, ask two or three AI tools the questions your buyers ask, and note who gets named. That hour tells you more than any keyword report.
Frequently Asked Questions
What Is the Difference Between GEO and SEO?
SEO is the work of ranking your pages in Google's list of links. GEO, or generative engine optimization, is the work of getting your brand named and cited inside AI answers from ChatGPT, Gemini, Perplexity and Google's AI Overviews. Most of the groundwork is shared, but the win and the way you measure it are different.
What Is GEO in SEO?
GEO stands for generative engine optimization. It is the part of search work aimed at AI answers rather than ranked links: making your pages easy for AI tools to find, read and quote. It builds on SEO rather than replacing it.
What Is AEO?
AEO stands for answer engine optimization. In practice it describes mostly the same work as GEO: making your content the answer an AI tool gives. Different vendors use different names for it, and we use GEO.
How Is AEO Different From SEO?
SEO aims to rank a page in Google's list of links, while AEO aims to have your content used in the answer itself. Most of the groundwork overlaps, including crawlable pages, clear structure and accurate claims. Google says its own AI features need no special optimization beyond good SEO.
Sources
- AI features and your website, Google Search Central, last updated December 10, 2025.
- Semrush AI Overviews Study: What 2025 SEO Data Tells Us About Google's Search Shift, Jana Garanko, Semrush, December 15, 2025.
- AI Overviews Are Expanding Across Commercial Intent Search, Luke Harsel, Semrush, July 3, 2026.
- Goodbye Clicks, Hello AI: Zero-Click Search Redefines Marketing, Natasha Sommerfeld, Megan McCurry and Doug Harrington, Bain & Company, February 19, 2025.
- GEO: Generative Engine Optimization, Pranjal Aggarwal, Vishvak Murahari, Tanmay Rajpurohit, Ashwin Kalyan, Karthik Narasimhan and Ameet Deshpande, KDD 2024.
- Position: Generative Engine Optimization Creates Underexamined Risks, Governance Must Target Concentration, Disclosure, and Academic Blind Spots, Yizhu Wen, Nan Zhang, Haohan Yuan, Xun Chen, Haopeng Zhang and Hanqing Guo, ICML 2026.
- RTC AI Visibility Audit, Baseline Round 1, Robles Technologies Corp., August 22, 2026. Internal record.
- Semrush keyword data, US database, pulled August 22 and September 26, 2026.