AI agent
An AI agent is a system built on language models that carries out a multi-step task autonomously: it decides what to do, uses external tools and chains actions until it reaches a goal. It differs from a chatbot in acting on real systems rather than only producing text.
In a small business the most profitable use is not the most spectacular one: triaging inputs, classifying mail, preparing drafts and consolidating scattered information. Every agent needs explicit limits on what it may touch and a human review point before any irreversible action.
Also called: autonomous agent, AI assistant