AI Overview, AI Mode and ChatGPT are three different answer surfaces

They are often lumped together as “AI search”. They pull sources differently, so being cited in one tells you little about the others — track them apart.

One label, three engines

Google’s AI Overview is the summary block above the classic results. Google’s AI Mode is a separate, conversational tab — a full back-and-forth, not a block on the SERP. And a standalone assistant like ChatGPT or Gemini answers from its own retrieval, sometimes with web search, sometimes without. They share the phrase “AI search” and little else.

Crucially, AI Mode is not the same as the Gemini app, even though both are Google. AI Mode runs inside Search with Search’s retrieval and link behaviour; the Gemini app is a different surface with different sourcing. Measuring one and assuming the other is a mistake.

Why a citation in one doesn’t transfer

Each surface builds its answer from a different source mix. AI Overview leans on what ranks and what its systems trust for that query; a conversational assistant may weight a handful of authority sites, forums, or its training data. A page that AI Overview cites can be absent from ChatGPT’s answer to the same question, and vice-versa.

So a single “are we in AI?” number hides more than it shows. The useful view is per-surface: mention and citation rate for AI Overview, for AI Mode, for ChatGPT, for Gemini — each counted on its own.

How to track them honestly

Run your real prompts against each surface separately, keep the results labelled by engine, and never average them into one figure. When a competitor is cited in AI Overview but you win in ChatGPT, that is a real, specific finding — one you can only see if you kept the engines apart.