Microsoft unveiled two Nvidia RTX Spark-powered AI computers on Wednesday (Oct. 7) at an event during San Francisco's Tech Week: the Surface Laptop Ultra starting at $2,600, and the Surface RTX Spark Dev Box workstation starting at $6,000. The pitch for both is the same — run AI models locally on the device, without paying for cloud inference.
Back in June, Nvidia announced partnerships with Microsoft and several PC makers to build AI- and agent-ready Windows PCs on its RTX Spark chip, but details were scarce. Wednesday's event filled in the specs and prices: the Surface Laptop Ultra and the Surface RTX Spark Dev Box.
The Surface Laptop Ultra comes in two base configurations — one starting at $2,600, another with a more powerful chip starting at $3,700. Memory and storage upgrades push prices up to $5,900, and Microsoft says the highest-end configuration is already out of stock. With unified memory and enhanced cooling, Microsoft says the laptop can also handle content creation, video processing, and gaming.
The compact Surface RTX Spark Dev Box workstation starts at $6,000 and ships with VS Code, GitHub Copilot CLI, Windows Subsystem for Linux, and PowerShell 7 — an out-of-the-box environment for building, testing, and running AI applications. The target user is clear: developers who want to run AI apps locally.
The core selling point of both machines is running AI models on-device "for free." The CPU, GPU, unified memory, and cooling designed for heavy workloads make local inference possible without paying per-call cloud fees — a real cost equation for developers who iterate on models all day.
Microsoft also showed a revamped Windows 11 featuring "Execution Containers," which isolate AI agents inside sandboxes while they perform tasks. CEO Satya Nadella said at the event that the feature will be available to all Windows 11 users, not just buyers of the new Surface devices. "One of the things we realized in the last 3-4 years is that just having a model doesn't do much for anything," Nadella explained. "You really do need to orchestrate, and you need to have memory outside of the model. You need to have this harnessed layer that is able to take multiple models plus context, plus memory, and the action space."
Microsoft isn't alone: RTX Spark machines from Dell, HP, Lenovo, and ASUS are already up for pre-order — the Dell XPS 16 at $3,800, HP OmniBook Ultra at $3,200, Lenovo Yoga 9n 2-in-1 from $3,100, and ASUS ProArt P14 from $2,600. Nvidia's AI PC ecosystem is turning from a solo act into a chorus.
For mainstream buyers, these machines are still toys for enthusiasts and developers — a $2,600 entry price rules out most people. But the direction, free local models plus OS-level agent sandboxing, signals Windows becoming an operating system for AI agents. Worth another look when the next generation brings prices down.