AI factories are redefining how data centers are conceived, delivered, and operated. In this session, we will explore the end-to-end lifecycle of AI infrastructure from early planning and design decisions through construction and commissioning, highlighting how AI workloads fundamentally change power, cooling, controls, and risk profiles. It focuses on the practical realities of delivering AI-ready facilities, exposing common assumptions that fail at high density and showing how integrated commissioning is essential to achieving performance, resilience, and scalability from Day One.