What Is An AI Agent?

An AI agent is an AI that doesn't just answer questions but does tasks for you, step by step, such as searching several websites, filling in a form or booking a table. Agents can save time, but they can make mistakes, so never give one your bank details or let it pay without checking.

Last checked: 15 October 2026

Chatbot Or Agent: What's The Difference?

A chatbot, like ChatGPT, Gemini or Claude in their everyday form, is a bit like a very well-read friend on the phone. You ask, it answers, and then you go and do the thing.

An AI agent is more like a helpful assistant you send off on an errand. You give it a goal, such as "Find me a table for two at an Italian restaurant near me on Friday at 7pm", and it makes a plan, opens websites, clicks buttons, types into boxes and comes back to you when it's done, or when it needs your say-so.

Chatbot and AI agent compared

Compared	Chatbot	AI agent
What you give it	A question	A job to do
What it gives back	An answer to read	A finished task, or a task ready for you to approve
Who does the clicking	You	The AI, while you watch or check in
Main risk	A wrong answer	A wrong action, such as booking the wrong date or buying the wrong thing

What Can AI Agents Do?

Today's agents are best at fiddly online chores that take lots of clicks. For example:

• Shopping: comparing products and prices across shops and adding items to a basket.
• Booking: finding hotels, restaurant tables or appointments that match what you asked for.
• Forms: filling in online forms with details you've given it.
• Research: reading lots of web pages and pulling the answer together for you.
• Email and calendar: drafting replies or finding a time for a meeting, if you connect your accounts.

Real Examples You May See

These are changing fast, and most are only in paid plans for now. You don't need any of them to get value from AI.

• Gemini Agent (Google) makes a plan, browses the web and can work with Gmail and Calendar if you connect them. Google says it asks for confirmation before critical actions like sending an email or making a purchase. It's rolling out first to Google AI Ultra subscribers in the USA. Google is also testing auto browse in Gemini in Chrome on computers.
• Claude in Chrome (Anthropic) is a browser add-on for paid Claude plans that can read, click, type and fill in forms on websites. Anthropic itself says it is "still risky" and asks people to read its safety advice first.
• ChatGPT (OpenAI) launched "agent mode" in 2025. OpenAI has since replaced it with ChatGPT Work for longer, multi-step tasks on paid plans.
• Alexa+ (Amazon) is a voice assistant that can take some actions for you, such as booking a restaurant through supported services, when you ask out loud.

What Are The Benefits Of AI Agents?

• It can save time on boring, many-step jobs.
• It can help if typing, small screens or lots of clicking are hard for you.
• You can describe what you want in everyday words.

What Are The Risks Of AI Agents?

• Mistakes: like chatbots, agents get things wrong. An agent can book the wrong date or pick the wrong product, and say it did well.
• Tricks: a dodgy website can hide instructions meant to fool an agent into doing something you never asked for. Experts call this "prompt injection".
• Your accounts: an agent may use websites you're already logged into. That's handy, but it means it can act as you.
• You're responsible: Google's own help page for auto browse says you're responsible for what the agent does, including mistakes and purchases.

How Do I Stay Safe With AI Agents?

Think of an agent as a new helper on their first day. Useful, but you wouldn't hand over your bank card and leave the house.

1. Never let it pay unsupervised. Make sure it stops and asks you before any payment, and check the amount, date and seller yourself.
2. Keep it away from banking, pensions and tax accounts. Do those yourself.
3. Don't give it your passwords or one-time codes. Log in yourself if you need to.
4. Only give the permissions it needs. If it asks to connect to your email, calendar or files, say yes only if the task needs it, and switch it off afterwards.
5. Watch the first few times. Most agents show you what they're doing on screen. You can stop them or take over at any time.
6. Check before it sends anything in your name, such as emails or messages.
7. Start small, with something low-risk like comparing prices or finding opening times.

Scam warning: be wary of anyone selling an "AI agent that makes you money" or offering to "set up an agent" for you if you hand over your logins. Real agents come from the big companies' own apps and websites.

What Words Might I Hear?

• Agentic AI: AI that can act, not just answer. Another way of saying "AI agents".
• Autonomous: able to carry on by itself without asking you at every step.
• Computer use: when an AI moves the mouse, clicks and types on a screen, the way you would.

See more in our Glossary.

New to all this? Our free AI Starter Guide walks you through the basics, and you can print it.

Common Questions

Sources

Last checked 16 October 2026.

• Google: Gemini Agent
• Google: Ask Gemini in Chrome to complete tasks with auto browse
• Anthropic: Get started with Claude in Chrome
• OpenAI: ChatGPT agent (help article)
• OpenAI: Introducing ChatGPT agent
• Amazon: Alexa+

Read Next

• What Is AI? Explained Simply

  Everyday AI, chatbots and staying safe, in plain words.

• ChatGPT Vs Gemini Vs Claude

  A simple comparison, with USA and UK prices.

• Free AI Starter Guide

  A printable 25-page guide to get started safely. Free PDF, no sign-up.

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About The Author

Robert Woolford is the founder of exonexo, a simple guide to AI tools, AI news and scam safety for beginners. Spotted a mistake or have a question? Email info@exonexo.com. Read our Editorial Policy.