What is AI? A plain-English guide for people who've never used it

You've probably heard "AI" on the news a hundred times this year. Here's what it actually is, what it's good for, and what to watch out for, with no jargon.

So what is it?

AI (artificial intelligence) is software that has read an enormous amount of writing, and learned from it how to answer questions and write text the way a person would. The kind people are talking about, apps like ChatGPT, Google's Gemini and Microsoft's Copilot, works like a very well-read assistant. You ask it something in ordinary words, typed or spoken, and it replies in ordinary words.

Is it like a search engine?

Not quite. A search engine gives you a list of websites to read. An AI app reads for you and gives you one answer, and you can ask follow-up questions as if you were talking to someone: "Can you explain that more simply?" or "What should I do first?"

What is it genuinely good for?

• Explaining things. A confusing letter, a word the doctor used, or how a pension statement works.
• Writing. A polite complaint, a thank-you note or a birthday verse.
• Everyday questions. Why are my tomato leaves yellow? What can I cook with leeks and potatoes?
• Hobbies and plans. A walking route, a family-history lead, or a list of things to pack.

What should I be careful about?

• It can be wrong, and sound confident. For anything important (health, money, the law), use it to understand the question, then check with a proper source or a professional.
• Don't share private details. Type nothing you wouldn't write on a postcard: no bank details, passwords or NHS numbers.
• Criminals use it too. It can copy voices and write convincing scam emails. Read how to spot AI voice scams.

Do I have to pay?

No. The main apps have free versions that are more than enough to start with.

How do I try it?

Download the free ChatGPT or Gemini app on your phone, tap the microphone, and ask a question out loud.

Want a hand?

If you would rather have someone show you, at your own kitchen table and at your own pace, that is exactly what I do. Ring 07500 511462 for a free 15-minute chat, or read about AI lessons at home.