By Alex Smith |
Nvidia and Microsoft have announced a partnership to deliver a secure platform for running AI agents locally on Windows PCs, built around RTX Spark, a new system-on-chip from Nvidia.
The collaboration aims to address the difficulty of running AI agents securely and privately on a user's primary device, rather than routing data through cloud services. The two companies have developed a joint security layer comprising new Windows security primitives – the operating system-level controls governing identity verification, process containment and policy enforcement that agent applications are built on top of – and the Nvidia OpenShell runtime, which allows users to define what agents can and cannot access, route queries to local models based on privacy preferences and obscure personal data in any queries sent to cloud services.
“The PC is being reinvented,” said Jensen Huang, founder and CEO of Nvidia. “With RTX Spark and Microsoft Windows, you ask – and the PC does the work. Local agents. Frontier models. Creative workflows. All on a laptop. This is the new PC. The personal AI computer.”
Agent developers OpenClaw and Hermes Agent are among the first to build Windows applications on the platform.
“We are strong supporters of deploying agents like OpenClaw securely into the Windows ecosystem,” said Vincent Koc, chief architect at the OpenClaw Foundation. “Running solutions like OpenShell and the Microsoft security primitives on RTX Spark will enable users to leverage a fully integrated stack for private, personal agents running on device.”
The hardware underpinning the partnership is RTX Spark, a system-on-chip combining a Blackwell RTX GPU with a 20-core Grace CPU, delivering up to one petaflop of AI compute and supporting up to 128 gigabytes of unified memory. Nvidia says this is sufficient to run 120-billion-parameter large language models with one million tokens of context on-device.
Microsoft will surface RTX Spark-powered agent capabilities directly from the Windows taskbar. The partnership is also set to extend into enterprise settings, with Nvidia's DGX Station for Windows scaling the same architecture for developers requiring greater on-device compute.
“Our goal is to deliver unmetered intelligence to every home and every desk with Windows,” said Satya Nadella, chairman and CEO of Microsoft. “RTX Spark marks a real breakthrough towards that vision.”
RTX Spark devices from Asus, Dell, HP, Lenovo, Microsoft Surface and MSI are expected this autumn, with models from Acer and Gigabyte to follow.