If you're new to AI, this is one of the first questions you'll face: ChatGPT or Claude? Both are excellent. Both have free tiers. Both can handle most everyday tasks well.
But they're not identical — and understanding the differences helps you get better results depending on what you're actually trying to do.
AI101.uk courses use both ChatGPT and Claude throughout. We don't have a favourite — we use whichever works better for the task at hand. This article reflects that approach.
Quick overview
| Feature | ChatGPT | Claude |
|---|---|---|
| Made by | OpenAI | Anthropic |
| Free tier | Yes — GPT-4o mini | Yes — Claude 3.5 Sonnet |
| Paid tier (UK) | ~£20/month (Plus) | ~£18/month (Pro) |
| Image generation | Yes (DALL-E, paid) | No |
| Web browsing | Yes (paid) | Yes (with tools) |
| Long documents | Good | Excellent |
| Community size | Very large | Growing |
Where ChatGPT wins
ChatGPT is the tool that started the AI revolution and it remains the most widely used AI assistant in the world. That scale matters — it means more tutorials, more shared prompts, more integrations with other tools, and more community support if you get stuck.
The free tier of ChatGPT (using GPT-4o mini) is capable for most everyday tasks. ChatGPT Plus gives you access to the full GPT-4o model, image generation via DALL-E, and web browsing — which lets it search the internet for current information.
ChatGPT tends to be better for:
- Creative writing and brainstorming
- Generating images (DALL-E integration)
- Coding help and debugging
- Quick, conversational exchanges
- Tasks requiring web search
- Anything requiring a large community of shared prompts
- Working with long documents
- Careful, nuanced writing
- Following complex multi-step instructions
- Honest responses when uncertain
- Analytical and research tasks
- Situations where tone and quality matter most
Where Claude wins
Claude is made by Anthropic, an AI safety company founded by former members of OpenAI. It's often described as the AI that feels most like talking to a thoughtful person — responses tend to be more nuanced, more carefully reasoned, and more honest about uncertainty.
Claude's biggest practical advantage is its ability to handle long documents. You can paste in an entire research paper, annual report, or lengthy email chain and ask it questions, summarise it, or compare it against something else. For this kind of task, Claude is noticeably better than the free tier of ChatGPT.
Claude also tends to be better at following complex instructions precisely. If you give it a detailed prompt with multiple requirements, it's less likely to miss one of them.
On honesty and accuracy
Both tools hallucinate — confidently saying things that are wrong. This is a fundamental limitation of how large language models work, and neither tool has solved it. Always verify important facts from either tool against a reliable source.
That said, Claude is generally more likely to tell you when it's uncertain rather than confidently guessing. This doesn't mean it's more accurate — it means it's more honest about its limitations, which is arguably more useful.
Which should you start with?
If you're just getting started with AI, our honest recommendation is to try both free tiers and see which one you find more natural. There's no wrong answer — the skill of prompting transfers between tools, and both will serve you well.
The practical differences become more meaningful as you get further into AI use. For most people in the early stages, the choice of tool matters far less than learning how to prompt well.
Our courses teach prompting techniques that work on both ChatGPT and Claude — and every exercise includes "Try in ChatGPT" and "Try in Claude" buttons so you can test the same prompt on both tools and see the difference for yourself.
What about Gemini and other tools?
Google's Gemini is worth knowing, particularly if you're deeply embedded in Google's ecosystem — it integrates with Gmail, Google Docs, and Google Drive in ways ChatGPT and Claude don't. Microsoft Copilot is worth knowing if you spend most of your working day in Word, Excel, or Outlook.
For most everyday personal use, however, ChatGPT and Claude cover the vast majority of what you'll want to do. Start with one of these two.
- Both ChatGPT and Claude have excellent free tiers — try both before paying for either
- ChatGPT has a larger community, image generation, and is more widely integrated
- Claude is better with long documents and tends to be more honest about uncertainty
- Both hallucinate — always verify important facts
- The choice of tool matters less than learning to prompt well
Learn AI properly — whichever tool you use
Our courses use both ChatGPT and Claude throughout, teaching prompting techniques that work on any AI tool. Practical exercises, verified certificate, lifetime access.
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