Overview
ChatGPT mode that conducts multi-step internet research and synthesizes long, cited reports using a specialized o-series reasoning model.
Details
Deep Research is a ChatGPT capability built on a specialized version of OpenAI’s o3 reasoning model that autonomously conducts multi-step web research (searching, browsing, reasoning over results, and iterating) to produce thorough, cited reports on complex topics. Tasks typically take 5-30 minutes and produce documents 5-30 pages long with inline source attribution. Deep Research is available to ChatGPT Plus, Pro, Team, and Enterprise users. It set the standard for the autonomous research agent category in 2025.
Tags
research, autonomous-agent, web-search, knowledge-work