Agentic AI represents the next evolution in artificial intelligence, moving beyond predictive and generative AI to systems that autonomously act to achieve goals across various industries. This shift focuses on task completion rather than mere content creation, transitioning from passive responses to active executions. The concept of "agentic AI" is often misunderstood and overused, leading to skepticism within the tech community. True agentic systems operate on a spectrum, from simple applications to sophisticated multi-agent systems that autonomously manage complex tasks. The distinction between workflows and agents lies in control flow—workflows are deterministic, whereas agents exhibit dynamic control, enabling adaptability at the cost of predictability. Developers seek systems that are goal-oriented, autonomous, and capable of interacting with their environment. Despite industry cynicism, genuinely autonomous systems are being developed, and the key to successful implementation lies in understanding the principles of agency, building components such as reasoning engines, perception, action, memory, and orchestration, and addressing production challenges like reliability, cost, and security. The article highlights the potential of agentic AI in real-world applications, such as automated travel planning and enterprise operations, while acknowledging the hurdles of deploying AI agents at scale, emphasizing the importance of tools like Opik for building reliable, cost-effective, and secure agentic systems.