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Running a 120B model offline on Surface RTX Spark Dev Box with Intelligent Terminal

Microsoft Developer (Build) · Oct 30, 2026 · Product Launches

Microsoft's Surface RTX Spark Dev Box runs a 120B model fully offline via Intelligent Terminal

“this is your built-in pair programmer. It always has context into your shell.”

Microsoft demoed running a 120B parameter model entirely offline on the Surface RTX Spark Dev Box (Project Zemoth) at Build, using a new 'Intelligent Terminal' that embeds an AI pair programmer with persistent shell context. The demo showed automating multi-step VM creation tasks locally without cloud calls. This is a meaningful signal for on-device AI compute capability, as 120B models have previously required datacenter-class hardware.

on-device AI edge inference Microsoft developer tools local LLM Windows terminal

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