Introducing deep research

OpenAI launched deep research in ChatGPT, an agentic feature that spends 5 to 30 minutes finding, analyzing, and synthesizing hundreds of web pages, images, and PDFs into a cited report. It runs on a version of OpenAI o3 optimized for web browsing and data analysis and was trained on real-world browser and Python tasks; after the April 2025 update, Plus/Team/Enterprise/Edu get 25 queries per month, Pro 250, and Free 5. The key point is a productized workflow for multi-step, source-backed research, not a basic search refresh.

Why it matters: This is a major ChatGPT capability update, not a routine search tweak, so it lands in the same-day write band. HKR-H/K/R all pass on the autonomous 5 to 30 minute workflow, the o3-based browsing stack, cited outputs, and the direct impact on knowledge-work research flows.