An AI agent is an AI system that works toward a goal by planning steps and taking actions with tools, such as searching the web, editing files, using apps, or running code, rather than just answering a single prompt. Agents are now common in coding (GitHub Copilot, Cursor, Claude Code, OpenAI Codex), research, customer support, and browser tasks. They are powerful but need clear boundaries, limited permissions, and human checkpoints.
Part of AI Automation. Last updated September 2026.
Assistants vs Automations vs Agents
| AI Assistant | AI Automation | AI Agent | |
|---|---|---|---|
| How it works | Responds to your prompt | Follows a fixed sequence you design | Decides its own steps toward a goal |
| Control | High | High | Lower; needs guardrails |
| Best for | Drafting, analysis, questions | Repeatable, predictable processes | Open-ended, multi-step tasks |
| Example | Asking for an email draft | Form to AI summary to CRM | A coding agent fixing a bug across files |
Where Agents Help Today
- Software development: planning and making code changes, running tests. See AI in Software Development.
- Research: multi-step research that gathers and summarizes sources.
- Customer support: AI agents that resolve common questions and hand off the rest.
- Browser and computer tasks: filling forms or navigating websites under supervision.
Risks and Guardrails
- Limit permissions: give agents only the access they need.
- Require approval before irreversible actions, such as sending, paying, deleting, or deploying.
- Beware of instructions hidden in content: agents reading web pages or emails can be manipulated by text designed to hijack them.
- Log actions so you can review what happened.
- Start small with low-risk tasks.
Frequently Asked Questions
What is the difference between an AI agent and a chatbot?
A chatbot responds to messages; an agent can plan and take actions across tools to complete a task.
Are AI agents safe for businesses?
They can be, with limited permissions, approval steps for important actions, and monitoring.
How do I start with AI agents?
Try an agent inside a tool you already use, such as a coding agent or research mode, on a low-risk task.