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Learn AI Fundamentals

What AI actually is, how the main tools work, and how to use them effectively in professional and everyday contexts — without the hype or the fear.

Understand what AI is and is not — clearly and accurately
Use ChatGPT, Claude, and Gemini effectively for real work
Write prompts that get genuinely useful results
Understand where AI is heading and how to stay ahead of it
Free forever No signup required Progress saved locally 15 lessons

Three tracks — pick your level. Progress is saved automatically in your browser.

BeginnerStart here. No prior knowledge assumed.
0 of 5 complete
Lesson 1
What is AI? — The Clear Answer
What artificial intelligence actually is — not the science fiction version, not the hype. How large language models work, what they are doing when they generate text, and what the limits are.
Lesson 2
ChatGPT — Complete Guide
The most-used AI tool in the world. What it can do, what it cannot, how to navigate the interface, and the practical differences between the free and paid versions.
Lesson 3
Claude — Complete Guide
Anthropic's AI assistant — how it differs from ChatGPT, where it performs better, and the specific use cases where Claude is the better choice.
Lesson 4
Gemini — Complete Guide
Google's AI assistant — deep integration with Google Workspace, real-time search, and where it fits alongside ChatGPT and Claude.
Lesson 5
Which AI Tool Should I Use?
A practical decision framework for choosing between AI tools — not a definitive ranking, but a set of questions that lead to the right choice for your specific task.

What is a large language model doing when it generates text?

What is the most important habit when using AI for research?

IntermediateBuild on the basics.
0 of 6 complete
Lesson 1
Prompt Engineering — The Fundamentals
How to write prompts that get genuinely useful results. Role, context, format, constraints, and the iteration mindset that separates effective AI users from frustrated ones.
Lesson 2
AI for Writing and Content
Using AI to draft, edit, summarise, and reframe text. The key principle: AI suggests, you decide — and why the final voice must always be yours.
Lesson 3
AI for Research
Using AI to find, synthesise, and analyse information — combined with the critical habit of checking everything AI tells you against primary sources.
Lesson 4
AI for Coding
How non-developers can use Cursor, Claude, and GitHub Copilot to build real things — and what developers need to know about AI-assisted coding in 2026.
Lesson 5
AI Image Generation
Midjourney, DALL-E, and how to write prompts that produce useful images. Practical for marketing, design, and ideation — not a replacement for professional designers.
Lesson 6
AI for Business Productivity
Notion AI, Copilot 365, and Gemini Workspace — AI embedded in the tools you already use. What each integration actually does and where it saves real time.

What makes a good AI prompt?

What does "AI hallucination" mean?

AdvancedDepth, edge cases and strategy.
0 of 4 complete
Lesson 1
How AI Really Works — Under the Hood
Tokens, parameters, training data, fine-tuning, and the technical concepts you need to understand to use AI seriously. No maths — just the mental models.
Lesson 2
Agentic AI — What's Coming
AI agents, multi-agent systems, and the shift from AI that responds to AI that acts. What this means for work, for automation, and for how businesses will operate.
Lesson 3
AI Bias, Safety, and Ethics
Where AI goes wrong, why it goes wrong, and how to use AI in a way that accounts for its limitations. Not hypothetical risks — practical, everyday considerations.
Lesson 4
AI Careers and the Future of Work
How AI is changing every profession, which skills become more valuable, and the ADAPT framework for positioning yourself in an AI-augmented world.

What is fine-tuning an AI model?

What is an AI agent?

Ask an AI about this page

Opens your assistant with this page as the source, and a question rather than a summary. It will ask what you are building before it answers.

ChatGPTClaudeGeminiPerplexityGrok

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