Query fan-out tool: See the searches AI actually runs

Most fan-out tools ask an AI to guess the subqueries. This free query fan-out tool shows the searches ChatGPT, Claude and Gemini actually ran for your prompt, which ones came back every time, and where your site ranks on Google for each.

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Engines
Runs
ChatGPT
The ChatGPT app with search.
Claude
Anthropic's API with web search on.
Gemini
Google's API with Google Search grounding.

None of these is Google AI Mode. Nobody outside Google can see AI Mode's own searches.

Free, no sign-up. One run is the default. Three runs ask each engine the same prompt three times, because the searches an engine runs change from one run to the next.

What query fan-out is

Query fan-out is a retrieval technique in which a search system decomposes a user query into multiple related subqueries, searches for information relevant to those subqueries, and combines the retrieved information into a response.

More on how it works at queryfanout.wiki.

For you, fan-out means one question can trigger several searches, and your page has to rank for the searches an engine runs, not only for the question the person typed. This tool asks each engine your prompt with web search on and reads back the searches it ran. Our study of fan-out queries shows how differently ChatGPT, Claude and Gemini searched the same 100 prompts.

Which engines this tool asks

This tool asks three engines, and each label says exactly what that engine is.

ChatGPT

The ChatGPT app with search. It is the slowest of the three and can take up to a minute for each run.

Claude

Anthropic's API with web search on. It reports the pages it used, and the searches it ran.

Gemini

Google's API with Google Search grounding. Its provider is rate limited at times, so a run can come back busy. Try that engine again after a minute.

Google AI Mode

AI Mode is a separate Google product, and its searches stay inside Google. This tool can show the searches of the three engines above, and nothing from AI Mode.

How to read the fan-out results

The fan-out results show which searches the engines ran, how steady they are, and whether your site shows up for them.