An AI agent is an AI that does things, not just answers questions: you give it a goal, and it decides which steps to take and uses tools such as files, a browser or code to get there, checking its own results along the way. A chatbot tells you how to make a budget; an agent opens a spreadsheet and makes it. Claude Code, Codex and Cursor’s agent are examples that build things on your computer.
Facts checked 2026-10-08. Tools and prices change, so we date this.
Chat versus agent
When you chat with AI, it produces text and you do the rest. An agent closes that gap. Anthropic describes agents as systems where the AI dynamically directs its own process and tool use, deciding how to accomplish the task, as opposed to following a fixed script written in advance.
In plain terms: you hand over a goal instead of a question, and it works out the steps. Along the way it looks at what happened and adjusts.
Examples you can actually use
A coding agent such as Claude Code creates the files for a small tool, runs it, notices an error and fixes it. A research agent searches several sources and writes you a summary. A scheduling agent reads your calendar and proposes times. What they share: tools, a goal, and a loop of try, look, adjust.
Many products now call themselves agents, and the word is used loosely. A good test is simple: did it take actions in the world on its own, or did it only write text for you?
What to be careful about
More power means more room for mistakes. An agent can take a wrong step confidently, repeat it, or change something you did not mean to hand over. It can also be slow, and its usage counts against your plan limits.
Good habits: start with a small, low-stakes task; use a mode where it asks before changing anything; give it a folder you made for the purpose; and read what it says it did.
How to try one today
The easiest first agent is a coding agent in a desktop app.
- Open the Claude desktop app and choose the Code tab (a paid plan is needed, Pro is about $20 a month at the time of writing).
- Pick an empty folder and keep the mode on Manual.
- Ask for something small and personal, like a one-page planner.
- Watch what it does: it creates files, checks them and fixes what it finds. That is the agent loop in action.
Questions people ask
What is the difference between an AI agent and a chatbot?
A chatbot answers with text. An agent takes actions with tools toward a goal, such as creating files or running code, and checks the results.
Is ChatGPT an AI agent?
ChatGPT started as a chatbot. It now includes Codex, which can work on coding tasks for you, so it acts as an agent when you use it that way.
Are AI agents safe?
They are as safe as the permissions you give them. Use a mode where they ask before changing things, and start with low-stakes tasks in a dedicated folder.
Do I need to code to use an AI agent?
No. You describe the goal in plain English. Desktop apps like Claude’s Code tab give you buttons to approve each step.
Where to go next
- The shift: from talking to makingWhy this changes what AI is for.
- Claude Code for beginnersTry an agent in the first twenty minutes.
- What is vibe coding?What it is like to build with an agent.
- Claude Code vs ChatGPT vs CursorWhich agent to start with.
- How much to trust itWhere to check its work.