TECHNOLOGY

How Microsoft's New AI Helper, Mu, Aims to Simplify Windows 11

USAThu Jun 26 2025
Microsoft has introduced a new AI tool named Mu to assist users in navigating Windows 11 settings. This small language model (SLM) is designed to work alongside Phi Silica, another AI model already integrated into Copilot+ PCs. Mu is built to run directly on your computer's neural processing unit (NPU), making it quick and efficient. Mu is a compact model with 330 million parameters, making it much smaller than larger language models. It uses a transformer architecture, which helps it understand and respond to user inputs effectively. Microsoft trained Mu using advanced techniques to ensure it performs well despite its small size. The company claims Mu's performance is nearly on par with Phi-3. 5-mini, which is ten times larger. The goal of Mu is to enhance the Windows 11 settings experience. Microsoft wants to make it easier for users to find and adjust settings by allowing them to ask questions in natural language. This feature is part of Microsoft's push to make Windows more AI-driven. However, some users might wonder if this AI assistance is necessary. Windows settings have evolved over the years, and many users are already familiar with navigating them. Still, Microsoft is confident that this AI feature will improve usability, especially for those who are less tech-savvy. Microsoft worked with Intel, AMD, and Qualcomm to optimize Mu for various NPU-powered devices. This collaboration ensures that Mu runs smoothly on different hardware configurations. The company is also open to user feedback to refine the feature further.

questions

    What specific advantages do small language models like Mu offer over larger language models in terms of efficiency and performance?
    If Mu is so efficient, why can't it help me find my missing socks instead of just Windows settings?
    Are the optimizations in Mu's design actually a way to gather more data from users' local hardware?

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