Mirai is an advanced platform tailored for developers that focuses on on-device AI infrastructure, enabling the conversion, optimization, and execution of machine learning models directly on Apple devices with a strong emphasis on performance and user privacy. This platform offers a cohesive workflow that allows teams to efficiently convert and quantize models, assess their performance, distribute them, and conduct local inference seamlessly. Specifically designed for Apple Silicon, Mirai strives to achieve near-zero latency and zero inference cost, while ensuring that sensitive data processing remains securely on the user's device. Through its comprehensive SDK and inference engine, developers can swiftly integrate AI functionalities into their applications, leveraging hardware-aware optimizations to maximize the capabilities of the GPU and Neural Engine. Additionally, Mirai features dynamic routing abilities that intelligently determine the best execution path for requests, whether that be locally on the device or utilizing cloud resources, taking into account factors such as latency, privacy, and workload demands. This flexibility not only enhances the user experience but also allows developers to create more responsive and efficient applications tailored to their users' needs.