GPT-OSS-20B Model with GPU Acceleration Now Available on Windows

August 5, 2025 – Windows has announced the immediate availability of GPU-optimized variants of OpenAI's gpt-oss-20B model for Windows devices. This significant release enables Windows developers to integrate powerful, open-source reasoning models directly into their applications, with full support for local inference.

The introduction of the gpt-oss-20B model marks a pivotal moment for AI development on the Windows platform. By leveraging GPU acceleration, the model ensures efficient and high-performance execution of AI tasks directly on the user's device, bypassing the need for constant cloud connectivity. This capability for local inference offers several advantages, including enhanced data privacy, reduced latency, and the ability to operate applications offline.

Developers can begin experimenting with and implementing the gpt-oss-20B model today through two primary channels: Foundry Local and the AI Toolkit for VS Code (AITK). These tools provide the necessary environment and resources for developers to seamlessly integrate these advanced AI capabilities into their projects, fostering innovation across a wide range of applications.

This initiative is set to empower Windows developers with greater control and flexibility over their AI deployments, opening new avenues for creating intelligent, responsive, and secure applications. Further details regarding the capabilities and potential applications of OpenAI's gpt-oss models are available on the Azure blog.