AI platforms
Each AI platform finds facts in its own way. These pages explain how, and say plainly what FactHound checks on each and what it doesn’t.
ChatGPT
How ChatGPT finds facts about a business, how to check what its model says about yours, and what FactHound does and does not do.
Perplexity
How Perplexity chooses and cites sources, how to audit an answer about your business by hand, and what FactHound checks today (it does not query Perplexity).
Google AI Overviews
How Google AI Overviews draw on Google Search, a manual audit of what they say about your business, and the parts FactHound covers (it does not read AI Overviews).
Three platforms, three ways of finding facts
No single test covers every AI assistant. FactHound publishes one set of verified facts that all three can read, and checks each platform in the way that is possible today.
| Platform | Where its answers come from | What FactHound does today |
|---|---|---|
| ChatGPT | What its model learned in training, plus web search with linked sources when search is used. | Live answers from an OpenAI model with web search in the Simulator (Pro and Agency). Crawler access checked in the free check. |
| Perplexity | Web search, with links to the pages it used. | Crawler access checked in the free check. No live Perplexity answers: the Simulator’s Perplexity option is a labelled approximation. |
| Google AI Overviews | Google Search: its index and the facts Google holds about businesses, summarized by Gemini models. | Structured data published and checked. A Gemini model with Google Search in the Simulator (Pro and Agency). FactHound does not read AI Overviews. |
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