AIO vs AEO
AIO is used two ways: for Google’s AI Overviews, and for AI optimization in general. AEO (answer engine optimization) is the practice of making content usable by answer engines, from featured snippets and voice assistants to AI chat search. Optimizing for AI Overviews is one part of AEO.
What does AIO mean?
In SEO tools, AIO usually abbreviates Google AI Overviews, launched in the US on May 14, 2024.[1] Some marketers use AIO for “AI optimization,” a synonym for AI search optimization.
What does AEO mean?
See answer engine optimization. It predates generative AI, covering featured snippets and voice answers.
How do they compare?
| AI Overviews (AIO) | AEO | |
|---|---|---|
| Scope | One Google feature | All answer engines |
| Eligibility | Indexed, snippet-eligible pages[2] | Varies by engine |
| Measurement | Search Console[3] | Per-engine tracking |
Frequently asked questions
Is AIO the same as GEO?
When AIO means AI optimization, it overlaps heavily with GEO.
Is AEO still relevant?
Yes; answer engines are now mostly AI-driven.
Where can I read more about AEO?
aeo.wiki covers AEO in depth.
See also
References
Sources accessed October 14, 2026 unless another date is given. See all sources.
- “Google I/O 2024: New generative AI experiences in Search”. Google (The Keyword). May 14, 2024.
- “AI features and your website”. Google Search Central. accessed October 14, 2026.
- “Generative AI performance report (Search)”. Search Console Help. rolled out to all sites as of August 31, 2026; accessed October 14, 2026.