Artificial Intelligence

What is AI Agent?

Quick answer

A software system that uses an AI model to plan and carry out multi-step tasks, often by calling tools, APIs, or other programs on its own.

AI Agent, explained

An AI agent goes beyond answering a single question. It receives a goal, breaks it into steps, decides which tools to use, observes the results, and adjusts its plan until the task is done or it needs human input. Most modern agents are built around a large language model that acts as the reasoning engine.

For example, a travel-booking agent might search flight APIs, compare prices, check a calendar, and draft a confirmation email. Agents raise practical design questions about reliability, cost, and safety, so many teams add guardrails such as permission checks, spending limits, and human approval for sensitive actions. The field is moving quickly, and terms like agentic AI are often used loosely in marketing.

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