OpenAI’s New Open Models Are Available on Microsoft’s Azure AI Foundry

Developers can now build, test, and deploy applications powered by OpenAI’s gpt-oss models within the AI development platform.

OpenAI’s new open models are now available through Microsoft’s Azure AI Foundry and Windows AI Foundry. This means developers can now build, test, and deploy applications powered by gpt-oss-20b and gpt-oss-120b within the artificial intelligence development platforms.

Sam Altman’s AI startup launched its first “open weight” models since 2019 on Tuesday. The smaller of the two, gpt-oss-20b, has 21 billion parameters and is similar in performance to o3-mini. It only needs 16GB of VRAM, so it can be run on a range of Windows hardware, including GPUs with sufficient capacity.

The larger, gpt-oss-120b, has 117 billion parameters, can run on a single NVIDIA GPU, and is comparable in performance to o4-mini. Offered as a serverless option on Azure cloud infrastructure, pricing for this model starts at ...