Deep research agent
A deep research agent is an AI system that plans a broad question, runs many searches and reads, and writes a cited report.
What it means
A deep research agent takes a broad question, such as the size of a market or the regulatory history of a product, and breaks it into smaller questions. It searches the web and other sources for each one, reads the pages it finds, and decides what to look for next. Many agents show a plan first, so the user can see the scope before work starts. The output is usually a long report with citations.
The difference from a normal chat answer is the loop. A chat model answers mostly from what it already knows, while a deep research agent keeps searching until each part of the question has evidence. That makes runs slower and more costly, but it also makes the work easier to check, because each claim should point to a source. Benchmarks such as DRACO and DeepResearch Bench test how well agents do this across many tasks.
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https://bestdeepresearchai.com/glossary/deep-research-agent/