Blog O3-Deep-Research

Where Is Deep Research in ChatGPT? A professional overview
Dec 2, 2025
O3-Deep-Research
o4-mini-deep-research
OpenAI

Where Is Deep Research in ChatGPT? A professional overview

Over 2024–2025 ChatGPT and its sibling models shifted from being purely conversational LLMs to offering end-to-end deep research capabilities:
O3-Deep-Research API
Aug 6, 2025
O3-Deep-Research

O3-Deep-Research API

The O3-Deep-Research model is OpenAI’s flagship agent designed for autonomous, multi-step research workflows. Launched as part of the Deep Research API, it leverages advanced reasoning capabilities to plan, search, analyze, and synthesize information across diverse web sources, delivering expert-level reports within minutes .