Microsoft has introduced a small language model named "Mu" to enhance AI agents in the Windows 11 Settings app. This model operates on Neural Processing Units (NPUs) and is designed to automate tasks on users' PCs with granted permissions. Mu was developed with attention to NPU memory constraints, ensuring efficient operation through NPU-optimized processes. The model aims for ultra-low latency, achieving response times under 500 milliseconds, and is integrated into the search box of the Settings app. Currently, AI agents powered by Mu are being tested among Windows Insiders, who can also explore an update to the Recall app.