AI skills — the everyday skill nobody certifies yet
Using AI well is fast becoming a basic life and work skill — and almost no school or exam teaches it. Learn to write prompts that work, pick the right tool, check what AI gives you, use it responsibly, and build it into how you study and work. Six fields, four tiers each (Foundation → Professional). Play free, pass a tier, and earn a certificate of competence you can download, print and share. New questions appear each time you play.
You can play as a guest — sign in with your free 21 ID to keep progress and claim certificates.
Build your skills
Start here — what AI is
Brand new to AI? Start here. What a chatbot and a large language model actually are, what they can and cannot do, and the everyday words — prompt, model, token, hallucination — in plain language.
Writing prompts
How to ask so you get useful answers — give context, be specific, show an example, set the format and role, and refine step by step.
Choosing & using AI tools
The main kinds of AI tool — chat assistants, image and voice, coding help, search and research — and how to pick the right one and get the best from it.
Checking AI output
AI can be confidently wrong. How to spot hallucinations, check facts and sources, and never paste sensitive data you should not.
Responsible & safe use
Privacy and data, bias and fairness, copyright and disclosure, and being honest about when AI helped — using AI in a way you can stand behind.
AI in real work & study
Put AI to work — summarising, drafting, planning, learning and analysing — and build simple, repeatable workflows that save real time.
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