Deep Research is a new model capability developed by OpenAI, focusing on conducting multi-step, complex research via the internet. Optimized from earlier versions of OpenAI's o3, it can search, interpret, and analyze large volumes of text, images, and PDF files, flexibly adapting its strategy based on encountered information. The model can also read user-provided files and analyze data by writing and executing Python code. Key advantages include powerful reasoning capabilities and efficient handling of complex tasks, making it suitable for scenarios requiring in-depth research and analysis. It's rooted in OpenAI's ongoing innovation in artificial intelligence, aiming to provide users with more powerful tools to solve complex real-world problems. Currently, the model is primarily aimed at Pro users, with pricing and specific positioning yet to be defined.