Definition
AI Mode replaces the SERP with a Perplexity-like conversational interface. Users can ask follow-up questions, the assistant retrieves and cites web sources, and the entire interaction can complete without ever showing 10 blue links. AI Mode is the long-term destination Google is steering toward.
Why it matters
AI Mode 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 Overviews - Google's generative-AI answer box at the top of search results, powered by Gemini. Now appears for more than half of qualifying US queries.
- Gemini - Google's multimodal LLM family. Powers Gemini app, AI Overviews, AI Mode, Workspace AI, and the Vertex AI / AI Studio APIs.
- ChatGPT Search - OpenAI's live-retrieval mode inside ChatGPT - pulls real-time web results, cites them, and answers in the chat surface.
- Perplexity - A dedicated answer engine that retrieves the web in real time and synthesises answers with inline citations.
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.