What is the difference between AEO, GEO and SEO? SEO earns a ranked position in a list of links, AEO earns a place as the source of a specific answer, and GEO earns visibility inside a generated response that blends several sources. The three overlap in practice, share the same technical base, and differ mainly in what they measure.
Last updated November 2, 2026.
What does this AEO, GEO and SEO comparison cover?
- The side-by-side summary of all three disciplines
- What SEO optimizes for
- What AEO optimizes for
- What GEO optimizes for
- Where the three overlap
- How the metrics differ
- What the weekly work looks like in each discipline
- Who owns each task across PR, SEO and content teams
- Which one to prioritize
- Frequently asked questions
How do AEO, GEO and SEO compare side by side?
The three disciplines compare on four points: what they target, what a win looks like, where the evidence comes from, and which team usually owns the work. The table below puts them next to each other.
| Point of comparison | SEO | AEO | GEO |
|---|---|---|---|
| Target | Ranked list of links | One answer to one question | Generated response built from several sources |
| A win looks like | Page one position and a click | The page is cited as the answer's source | The source appears across the response |
| Main evidence | Rank tracking and search data | Prompt testing and citation logs | Peer-reviewed benchmark and prompt testing |
| Typical owner | SEO and content team | Content and PR team | PR, content and technical team |
What does SEO optimize for?
SEO optimizes a page to rank in the list of links a search engine returns, so that more people click through to it. Its unit of success is position and clicks for a query, and its core tasks are keyword research, crawlable pages, internal links and earned backlinks.
SEO remains the right lever for short, commercial searches. Pew Research Center found in a July 2025 analysis of 68,879 Google searches that only 8 percent of one- or two-word searches produced an AI summary. Short queries still mostly return a list of links.
What does AEO optimize for?
AEO optimizes a page to be selected as the source of a direct answer to a specific question. The page earns that selection by opening with a short, complete answer, backing it with named evidence, and being consistent with what other sites say about the same topic.
AEO matters most for long, question-shaped searches. In the same Pew data, 53 percent of searches with 10 or more words produced an AI summary, and 60 percent of searches beginning with who, what, when or why did. The full definition and a six-step method are in the guide to what AEO is.
What does GEO optimize for?
GEO optimizes a source's visibility inside a generated response, where a model synthesizes several sources into one answer. Pranjal Aggarwal and co-authors introduced the term in a November 2023 preprint, GEO: Generative Engine Optimization, later presented at KDD 2024.
The authors argued that visibility in a generated response is harder to define than rank, because sources appear at different lengths and positions inside a block of text. They built a benchmark of 10,000 queries and reported visibility gains of up to 40 percent from methods such as adding citations, quotations from relevant sources and statistics. They also found the effect varied by domain.
Where do AEO, GEO and SEO overlap?
The three disciplines overlap on the technical base: pages that crawlers can reach, load quickly and structure clearly. A page that cannot be crawled cannot rank, cannot be retrieved for an answer, and cannot be cited in a generated response.
They also overlap on source quality. A page that earns backlinks from respected sites tends to be a page that other sites quote, and the Pew data shows that engines draw on a small set of familiar sources: Wikipedia, YouTube and Reddit made up 15 percent of the sources in the AI summaries Pew examined. The guide to vector embeddings and AEO explains how retrieval matches a page to a question by meaning, which is why clear wording helps in all three.
The difference is the objective. SEO asks whether a page ranks, AEO asks whether it is used as the answer, and GEO asks how much of a generated response it shapes.
How do the metrics for AEO, GEO and SEO differ?
The metrics differ because each discipline watches a different output. SEO reads search console data, AEO reads a log of tested prompts, and GEO reads how a source is represented inside generated responses.
| Discipline | Primary metrics | Where the data comes from |
|---|---|---|
| SEO | Impressions, average position, clicks, organic sessions | Google Search Console and analytics |
| AEO | Citation share, mention rate, answer accuracy | A fixed prompt list run weekly in each engine |
| GEO | Share of response attributed to the source, position within the response | Prompt testing with a defined visibility metric |
Clicks alone cannot judge AEO or GEO. Pew found that users clicked a traditional result in 8 percent of visits when an AI summary appeared, against 15 percent when none appeared, and clicked a link inside the summary in just 1 percent of visits. An AI citation audit produces the prompt-level baseline that these metrics need, and the GEO audit checklist lists 20 checks to start with.
What does the weekly work look like in each discipline?
The weekly work differs in its inputs. SEO starts from keyword and ranking data, AEO from a list of buyer questions, and GEO from a set of prompts and the sources the engines cite for them.
| Task | SEO | AEO | GEO |
|---|---|---|---|
| Research | Keywords and search volume | Buyer questions and prompts | Prompts and cited sources |
| Page work | Titles, headings, internal links | 40 to 80 word answer at the top, self-contained subheads | Named statistics, quotations and citations in the text |
| Off-page work | Backlinks | Facts stated on cited third-party sites | Earned coverage in the outlets engines draw from |
| Check | Rank tracker | Prompt log | Prompt log with response share |
Who owns each task across PR, SEO and content teams?
Each task goes to the team that already does the nearest work, with one lead per task and the other teams supplying inputs. The split below suits a company where PR, SEO and content sit in separate teams.
| Task | Lead | Support |
|---|---|---|
| Earn coverage on the outlets engines cite | PR | SEO supplies the target list |
| Rewrite key pages with the answer first | Content | PR checks facts, SEO checks structure |
| Fix crawl access, structure and markup | SEO | Developers |
| Track the prompt list and citations | SEO or analytics | PR reviews accuracy |
| Correct wrong claims at the source | PR | Legal when needed |
For PR teams, five habits change once AI answers matter. Open each page with a 40 to 80 word answer, name the source and date of every number, pitch the outlets that engines cite for the category first, refresh key pages on a schedule with a visible update date, and report citations and accuracy next to coverage counts. Earned coverage stays the base of the work, as 5W's guide to PR and GEO explains.
Which should a team prioritize?
A team should prioritize the discipline that matches how its buyers search, and keep the shared technical base healthy for all three. Four rules decide the order.
- If buyers search with short commercial terms, put SEO first, because those queries still mostly return a list of links.
- If buyers ask long questions or compare products in full sentences, put AEO first, because those queries are the ones most likely to produce an AI summary.
- If the category's answers come from a few publishers, add the GEO tactics of citations, statistics and quotations, and pursue earned coverage on those publishers. 5W's credit card analysis found three publishers drove 62 percent of citations in that category.
- In every case, fix crawl access and page structure before anything else.
5W's GEO versus SEO research compares the first and third disciplines in more depth, and GEO optimization services cover the ongoing work.
Should a company pick one name for this work internally?
A company should pick one name internally and define it in one sentence, because three overlapping terms cause budget and ownership confusion. Most programs do the same work under any of the three names, so the label matters less than a written definition of the goal, the metrics and the owner.
Frequently asked questions
Is AEO a subset of SEO?
AEO grew out of the same discipline of making pages findable, but it measures a different outcome. SEO measures ranking and clicks, while AEO measures whether a page is used as the source of an answer.
Do you need all three disciplines?
Most companies do the same underlying work under one program. The shared base of crawlable, well-structured, well-sourced pages serves all three, and the extra effort goes to whichever outcome matters most to the business.
Does a PR team need separate budgets for GEO and SEO?
Most PR teams do not need separate budgets at the start. The same coverage, pages and fact checks serve both, so the first additions are prompt tracking and answer-first rewrites.
Which one has the strongest evidence behind it?
SEO has the longest track record. For GEO, the main peer-reviewed test is the KDD 2024 paper by Aggarwal and co-authors, and the Pew study provides observational browsing data on how people use AI summaries. Evidence for AEO as a separate practice is mostly observational.
Will SEO stop working?
Nothing in the cited data shows that. Pew reported that users clicked a traditional result in 15 percent of visits to pages without an AI summary, and Google searches with short queries rarely produced a summary. The mix of query types is what changes.
How should results be reported to leadership?
Report one table with three rows. Show impressions and position for SEO, citation share and mention rate for AEO, and answer accuracy across the tracked prompts for GEO, each compared with the same date last quarter.
