What Are AI Agents? How They Work and Examples | Cohere
Jul 28, 2026

Summary
This post defines AI agents as software systems that use an AI model to pursue a goal across multiple steps, use tools, and adapt to their actions. It details the core components of an AI agent: the AI model, instructions, task context/state/memory, tools, and the agent harness. It also discusses the benefits of AI agents, such as higher throughput and adaptive task execution, and the challenges, including compounding errors and control of access/actions.