Skip to content
AI Resource Hub
AI Writing

How to Use ChatGPT: A Practical Beginner's Guide

Set up ChatGPT, write prompts that get useful answers, work with files and images, and avoid the most common mistakes.

By AI Resource Hub Editorial TeamUpdated 4 min read
On this page
  1. What you need before you start
  2. Step 1: Create your account and open a chat
  3. Step 2: Write your first useful prompt
  4. Step 3: Refine the answer instead of starting over
  5. Step 4: Work with files and images
  6. Step 5: Use web search for current information
  7. Step 6: Create images
  8. Step 7: Organise your work
  9. Common mistakes to avoid
  10. Prompts to try today
  11. Next steps

ChatGPT is a conversational AI assistant made by OpenAI. You type (or speak) a request, and it replies in natural language. It can draft emails, explain difficult topics, summarise documents, help with code and create images. This guide shows you how to get genuinely useful results from it, not just impressive-sounding ones.

What you need before you start

  • A free OpenAI account (you can sign up with email, Google, Microsoft or Apple).
  • A web browser, or the ChatGPT app for iPhone, Android, Mac or Windows.
  • A clear idea of a task you want help with. AI is most useful when you bring a real problem.

The free plan is enough to follow this guide. Paid plans raise usage limits and unlock more capable models; check OpenAI's pricing page for what is available in your country.

Step 1: Create your account and open a chat

  1. Go to chatgpt.com or open the app.
  2. Choose Sign up and follow the steps to verify your email or phone number.
  3. You'll land on a page with a message box at the bottom. That box is where you type your prompts.

Before you start, open Settings and look at Data controls. You can choose whether your conversations may be used to improve OpenAI's models. If you will discuss work or personal matters, decide on this setting now.

Step 2: Write your first useful prompt

A prompt is simply the message you send. The biggest difference between frustrating and useful results is context. Compare:

  • Weak: "Write an email to my landlord."
  • Strong: "Write a polite, firm email to my landlord asking him to fix a leaking kitchen tap I first reported on 3 October. Mention that it is now dripping constantly. Keep it under 120 words and use British English."

A good prompt usually includes:

  1. The task – what you want produced.
  2. Context – who it's for, background facts, what has happened so far.
  3. Constraints – length, tone, format, language variety.
  4. The output format – a list, table, email, step-by-step plan.

You don't need special phrases. Write as you would brief a capable colleague.

Step 3: Refine the answer instead of starting over

ChatGPT remembers the conversation, so the fastest way to improve a reply is to give feedback:

  • "Make it shorter and less formal."
  • "The second paragraph is wrong: the meeting is on Thursday, not Friday."
  • "Turn this into a table with columns for task, owner and deadline."

Treat the first answer as a draft. Two or three rounds of feedback usually get you much closer to what you need than rewriting the prompt from scratch.

Step 4: Work with files and images

You can attach files using the paperclip or + button:

  • PDFs and documents – ask for a summary, the key dates, or questions to raise with the author.
  • Spreadsheets – ask for totals, trends or a chart. ChatGPT can run analysis code on your data; check the numbers on a few rows yourself.
  • Photos – ask what's in an image, read text from a picture of a whiteboard, or get feedback on a design.

Remove personal and confidential information before uploading. If your employer has rules about AI tools, follow them.

Step 5: Use web search for current information

AI models are trained on data up to a certain date. For anything recent – prices, news, opening hours, regulations – ask ChatGPT to search the web, then open the linked sources to check them. A source link is a reason to check, not proof that the summary is right.

Step 6: Create images

You can ask ChatGPT to create an image: "Create a flat illustration of a small bakery storefront in the morning, warm colours, for a website header, wide format." Then ask for changes: "Make the sign blank" or "Use a cooler colour palette." See our guide to generating AI images for prompting tips.

Step 7: Organise your work

As you use ChatGPT more, keep related chats together. Projects (where available) let you group chats and files for one piece of work, and custom instructions let you tell ChatGPT about your preferences once, such as "Use British English and keep answers concise."

Common mistakes to avoid

  • Trusting facts without checking. ChatGPT can produce confident, specific and wrong statements – including fake quotes and references. Verify anything that matters.
  • Pasting sensitive data. Don't share passwords, ID numbers, bank details or private customer data.
  • Vague requests. If the answer is generic, your prompt probably was too.
  • Letting it replace your judgement. For medical, legal and financial questions, use it to understand the topic and prepare questions, then consult a qualified professional.
  • Submitting AI work as your own where it isn't allowed. Schools and employers have different rules; check them.

Prompts to try today

  • "Explain [topic] as if I'm new to it, then give me three questions to check my understanding."
  • "Here are my notes from a meeting. List the decisions and action items." (Then paste notes.)
  • "I'm planning a week of dinners for a family of four on a tight budget in [country]. Suggest simple meals and a shopping list."

You'll find more in our prompt library.

Next steps

Once you're comfortable, compare ChatGPT with other assistants in ChatGPT vs Claude and Gemini vs ChatGPT, and learn how to write better prompts.

Frequently asked questions

Is ChatGPT free to use?

Yes. ChatGPT has a free plan with usage limits. Paid plans increase limits and add features.

Does ChatGPT know about recent events?

Its built-in knowledge stops at a training cutoff, but it can search the web for recent information. Check the sources it links.

Can I use ChatGPT in my language?

Yes, ChatGPT understands and writes many languages, though quality is strongest in widely used ones.

AI Resource Hub Editorial Team

Our editors research AI tools using official documentation and reliable reporting, and update guides when products change. Read our editorial policy to see how we work. Editorial policy.

Tools in this guide

Claude

Anthropic

AI assistant known for long documents, careful writing and coding help.

  • Analysis of long PDFs and documents
  • Projects for organising files and instructions
  • Artifacts for documents, code and interactive pages
Free plan
Read reviewOfficial site (opens in a new tab)

Related articles

Best Free AI Writing Tools

The most useful AI writing tools you can use free, what the free plans include, and how to combine them.

1 min read