Iterative Search Refinement With Model Directed Queries

via “multi-step reasoning search with iterative refinement”

AI search engine — direct answers with citations, Pro Search, Focus modes, research Spaces.

Unique: Implements explicit query decomposition and iterative refinement where the model generates its own follow-up searches based on intermediate results, rather than executing a single retrieval pass. This mirrors human research behavior (asking follow-up questions based on initial findings) and is architecturally distinct from single-pass RAG systems that retrieve once and generate once.

vs others: Outperforms single-pass search engines and basic RAG systems on complex research questions by dynamically identifying information gaps and filling them, whereas Google Search requires manual query reformulation and ChatGPT lacks real-time web access for iterative refinement.