Microsoft Build 2026: Surface RTX Spark, Scout assistant, MAI-Thinking-1 reasoning model
7 major AI announcements including an always-on OpenClaw assistant and a new reasoning model.
At Build 2026, Microsoft unveiled the Surface RTX Spark Dev Box with Nvidia’s Arm-based Spark RTX chip and 128GB unified memory for local AI development. It launched Scout, an always-on OpenClaw-based assistant for Microsoft 365, and MAI-Thinking-1, its first in-house reasoning model with 35 billion active parameters. Other highlights include Project Solara (an Android-based OS for running agents across devices), Windows developer updates (Coreutils, Intelligent Terminal), Microsoft Execution Containers (MXC) to set guardrails for AI agent access, and the Majorana 2 quantum chip—which contains qubits 1,000 times more accurate, using lead and other compounds, and Microsoft says could lead to a practical quantum computer by 2029.
- Surface RTX Spark Dev Box: Nvidia Arm-based Spark RTX chip, 128GB memory, preloaded with VS Code and Copilot.
- Scout: Always-on OpenClaw assistant for Microsoft 365, automating calendars, expenses, and emails.
- MAI-Thinking-1: Microsoft's first in-house reasoning model with 35B active parameters and 128K context window.
Why It Matters
Microsoft is aggressively building its own AI hardware, models, and assistants, reducing reliance on OpenAI and enabling new developer workflows.