What Claude is brilliant at (and what it isn’t)

The best way to picture it

Imagine a brilliant new assistant on their very first day.

• They’ve read more than any person ever could
• They write beautifully, and they’re incredibly fast
• They never get tired, never get grumpy, and never mind silly questions
• But they know nothing about you unless you tell them
• And now and then, they’re confidently wrong

Keep that picture in mind. It explains almost everything about using Claude well.

What it’s brilliant at

✍️ Writing and rewriting. Emails, letters, cards, speeches, complaints, social media posts. It’s especially good at “make this sound friendlier” or “make this shorter”.

💡 Explaining things. “Explain my energy bill in plain English.” “What does ‘probate’ mean?” You can ask follow-up questions for as long as you like.

📄 Making sense of documents. Show it a letter, form or leaflet (by typing it in or taking a photo) and ask what it means and what you need to do.

🗓️ Planning and organising. Holidays, days out, meal plans, to-do lists, a family party, a garden project.

🤔 Thinking things through. “Help me decide whether to…” It’s a patient sounding board, available at 3 in the morning.

🎓 Learning something new. A language, a hobby, a bit of history, how your new gadget works.

💼 Business admin. Customer emails, quotes, price lists, social posts, policies and more. (Chapter 9 is all about this.)

Where to be careful

❗ It can be wrong, and sound sure. Occasionally it makes things up: a date, a fact, a phone number, a website. This is sometimes called a “hallucination”. For anything important, check it. (Chapter 11 shows you how.)

🩺 It isn’t a doctor, solicitor or financial adviser. It’s great for understanding things and preparing questions. Big decisions need a real professional.

🔒 It’s not the place for secrets. Never type in passwords, bank details or other private information. (Chapter 5 covers exactly what’s safe.)

📰 It may not know very recent news unless it searches the web. You can ask it to check online.

A quick reality check

People often think…	The truth is…
“It’s only for young people and techies.”	It’s designed to be used in plain English. Plenty of people start in their 70s and 80s.
“I’ll break something.”	You can’t. If something goes wrong, you just start a new chat.
“It’s spying on me.”	It only sees what you type into it. Chapter 5 shows you the privacy settings.
“It’s going to be complicated.”	If you can send an email, you can do this.
“It knows everything.”	It knows a lot, but it can be wrong, so double-check important things.

Next: getting in. Free or paid, signing up, and getting the app on your phone.