Do Google AI Overviews use the same sources as ChatGPT?

They draw on overlapping but distinctly different sources, and understanding the split matters if you want to be named by both. Google's AI Overviews lean on Google's own index and the entities Google already understands about you — your Knowledge Graph presence, Business Profile and the sites Google ranks. ChatGPT draws on its training data plus live retrieval that, in its browsing and search modes, leans heavily on Bing's index and the trusted, frequently-cited sources across the open web. So a business strong in Google's ecosystem but invisible in Bing can show up in AI Overviews yet be missed by ChatGPT, and vice versa. The durable answer is to be verifiable and well-described everywhere — a consistent entity, clean structured data and answer-ready content that any index can read — rather than optimizing for one engine's plumbing.

Test your own AI visibility (free)

Checks the AI-search readiness signals on your website. No signup. ~15 seconds.

FAQ

Why would I appear in one but not the other?Because they resolve you through different indexes. AI Overviews rely on Google's understanding of you — your Knowledge Graph, Business Profile and Google-ranked pages — while ChatGPT's live modes lean on Bing's index and widely-cited open-web sources. A strong Google presence with a thin Bing footprint can surface you in Overviews but leave you out of ChatGPT, so gaps in either index quietly cost you on that engine.

What should I do to be named by both?Build a single, consistent, verifiable entity rather than chasing one engine. Keep your name, address and profiles identical everywhere, claim both Google Business Profile and Bing Places, publish plain-text content that directly answers buyer questions, and let AI crawlers read your site. The more cleanly any index can resolve and describe you, the more engines can reach for you — the overlap is where consistency pays off.

How do I find out where I stand?Run a free Cited scan — it checks the AI-search readiness signals on your website (crawler access, llms.txt, structured data and answer-ready content) and lists the fixes to make first.

See if AI recommends you — free

Most businesses score under 40/100 and have no idea. Find your score in 15 seconds, then fix it.

Run my free scan