Definition
AI Overviews are Google's in-SERP AI answers - generated paragraphs that summarise the top-ranking results with linked citations. When an AI Overview appears, click-through to the top organic result drops by an average of 34.5%. Optimizing for AI Overviews is largely classic SEO done very well, plus aggressive extractability.
Why it matters
AI Overviews sits in the "Surfaces & platforms" layer of the AI search stack. Teams that handle it well get cited more, recommended more, and earn more of the AI-mediated revenue in their category. Teams that ignore it spend a year wondering why their content investment never moves the needle inside ChatGPT or Perplexity.
Related terms
- AI Mode - Google's full conversational search experience - an alternative to classic SERPs where AI answers the query end-to-end.
- Gemini - Google's multimodal LLM family. Powers Gemini app, AI Overviews, AI Mode, Workspace AI, and the Vertex AI / AI Studio APIs.
- AEO - Optimizing content so answer engines (Perplexity, Google AI Overviews, ChatGPT Search) quote it as the direct answer to a query.
- Extractability - How easily an LLM can lift a clean, summarisable answer from your page. High extractability dramatically increases citation rate on grounded surfaces.
- Zero-click search - Searches that end inside the search surface without a click to an external site. Now 58% of US searches.
Apply it
The LLM SEO playbook ties every concept in this glossary into a single operating model. If you want to see how your brand performs across all the LLMs at once - mention rate, citation share, sentiment, rank - start with the free GEO audit or skip straight to a free Livesov account.