What query fan-out is
Google’s AI Mode doesn’t answer your question with a single search. When Google introduced AI Mode in March 2025, it said AI Mode “uses a ‘query fan-out’ technique, issuing multiple related searches concurrently across subtopics and multiple data sources” and then brings the results together. Google’s documentation for site owners says AI Overviews may do the same.
Google’s guide to generative AI features defines fan-out queries as “a set of concurrent, related queries generated by the model” to fetch more results. Its example: for “how to fix a lawn that’s full of weeds”, they might include “best herbicides for lawns”, “remove weeds without chemicals” and “how to prevent weeds in lawn”. OpenAI describes a similar loop for its API: a reasoning model can “perform web searches as part of its chain of thought, analyze results, and decide whether to keep searching”.
What the generator gives you
A language model predicts the sub-queries for your query and groups them by facet: definition, how-to, comparison, alternatives, cost, best-for, problems, recent changes, examples and proof. Each comes with its intent and what a page has to say to be the best source for it. You also get a checklist of sections for one page that covers them, and a CSV or Markdown copy.
It is a prediction
Nobody outside the search engines can see the real sub-queries, and they change with the person asking. Google’s Search Console report for AI features lists impressions by page, country, date and device, not by query. So read the output as questions your page should answer, not as keywords with search volume.
How to use the list
- Enter the query you want to be cited for. Add your audience or product if it changes the answer.
- Hold the facets up against your page. A missing facet is a missing section: no pricing, no comparison, no problems.
- Check real data before you write. The People Also Ask finder lists questions Google shows, and the AI Overview checker shows whether an AI Overview appears.
- Add what only you know: your numbers, screenshots and mistakes. Google asks for “non-commodity content”.
Don’t write a page for each sub-query
Google’s guide warns that separate content for every variation of how people search, fan-out queries included, “primarily to manipulate rankings or generative AI responses” violates its scaled content abuse policy. Cover the sub-questions as sections of one strong page. Give one its own page only when readers search for it alone and you can answer it better than a section can, as with pricing or a comparison.
New to the idea? Our glossary has short explainers on query fan-out, AI Mode and AI Overviews.