Glossary/AI Search & Emerging/Query Fan-Out
AI Search & Emerging
Query Fan-Out
An AI search technique that splits one question into many related sub-queries, runs them in parallel, and merges the results into a single answer.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
Query fan-out is an AI search technique that splits one question into many related sub-queries, runs them in parallel, and merges the results into a single answer. Google's AI Mode uses it to cover different aspects of a request. It means content can be retrieved for related questions beyond the user's exact wording.