Commonwealth Fusion Systems Builds AI-Powered Digital Twin with Siemens and NVIDIA

January 07, 2026
Commonwealth Fusion Systems has announced collaborations with Siemens and NVIDIA to create an AI-driven digital twin of its SPARC fusion machine, accelerating progress toward commercial fusion energy.

Commonwealth Fusion Systems announced collaborations with Siemens and NVIDIA to develop a digital twin of its SPARC fusion machine, announced in a press release. The project will use artificial intelligence and data management tools to speed up the path to commercial fusion energy.

The digital twin will draw on Siemens' Xcelerator portfolio, including NX for product engineering and Teamcenter for product lifecycle management, to process designs and assemblies used in modeling and simulation workflows. CFS will also use NVIDIA Omniverse libraries and OpenUSD to integrate data with physics models, creating a virtual replica of SPARC for simulation and testing.

According to CFS, this approach allows the company to compare live experimental results with digital simulations and shorten the time needed for optimization. Siemens' digital tools are also being used to enhance manufacturing processes at CFS's magnet factory in Devens, Massachusetts.

The collaboration aims to improve the efficiency of engineering and manufacturing workflows by combining industrial software, AI, and simulation technologies to accelerate the development of fusion energy systems.

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