Powered by OpenAI o3 optimised for web browsing and python analysis, deep research uses reasoning to intelligently and extensively browse text, images, and PDFs across the internet, explains OpenAI.

The C#/.NET SDK reached v1.0.1 in December 2023, and the company has been working on the Python and Java versions since then, (see "Microsoft's Semantic Kernel SDK Ships with AI Agents, Plugins, ...