AI systems are increasingly being designed with Human-in-the-Loop (HITL) approaches, which intentionally embed human oversight and judgment into the decision-making process. HITL systems recognize that AI can excel in efficiency and scalability but often struggle with nuance, context, or ethical complexity on its own. By incorporating human input at various stages of a system's operation, HITL aims to improve reliability, accountability, and alignment with human goals. This approach is particularly important in high-stakes domains like healthcare, finance, legal reasoning, or creative work where AI may not be able to replicate the level of nuance and judgment that humans can provide. HITL systems are designed to balance automation with oversight, ensuring that humans remain actively involved in the decision-making process, especially when outcomes matter most. As AI continues to evolve, HITL is becoming increasingly important for building trustworthy and aligned systems that respect human values and real-world constraints.