Microsoft Build 2026: the 7 biggest announcements

Microsoft launched the Surface RTX Spark Dev Box targeting AI developers needing local AI model execution. The device replaces Qualcomm's canceled dev kit and runs on a custom AI-optimized platform. It is designed for developers building and testing AI models without relying on cloud infrastructure. The product supports local AI workloads with dedicated hardware acceleration. Microsoft integrated the device into its broader AI development ecosystem for engineers and researchers. The Surface RTX Spark Dev Box is available for pre-order starting April 15.