AI Agents are a system designed to augment large language models (LLMs) by planning tasks, integrating with third-party services, and chaining prompts to refine answers. They can be categorized into two high-level categories: Prescriptive Workflows and Exploratory Workflows. Prescriptive workflows follow predefined steps, making decisions based on fixed rules and parameters, while exploratory workflows are dynamic and adaptable, making decisions based on machine or human feedback. The choice between these two types of workflows depends on the task's complexity, flexibility requirements, cost considerations, and reliability needs. AI Agents can be implemented from scratch using various tools and frameworks, but it's essential to start simple and use LLM APIs directly before diving into more complex solutions. While AI Agents are not a silver bullet, they have the potential to revolutionize various industries by enhancing performance, flexibility, and cost-effectiveness.