Free interactive AI course

Learn AI the simple way

Understand how AI works, compare the top AI assistants, and build websites and apps with AI. Narrated visual lessons, quizzes and a glossary - free.

What Is Artificial Intelligence?

Artificial intelligence is no longer science fiction. It unlocks your phone with your face, suggests the...

"AI" is a big umbrella word. Under it sit many different ideas and techniques. In this chapter we sort AI...

You do not need advanced maths to understand how AI works. In this chapter we follow the life of an AI...

Machine learning is the engine of modern AI. There are several ways a machine can learn, just as people...

Behind every AI app is a stack of layers, from chips in data centres to the screen you tap. In this chapter...

There is no single "AI". There are many kinds of models, each built for different data and different jobs....

Large language models are the technology behind ChatGPT, Claude, Gemini and many other assistants....

Three AI assistants dominate most conversations: ChatGPT from OpenAI, Claude from Anthropic and Gemini from...

The quality of what you get from AI depends heavily on what you ask. Writing good instructions - called...

AI is changing nearly every industry. In this chapter we tour the most important application areas and look...

You do not need to train your own model to build a powerful AI product. Today most AI apps are built by...

A few years ago a professional website took weeks and a team. Today, with AI, a beginner can build and...

Mobile apps reach billions of people. AI now helps at every stage - from designing screens and writing code...

AI is powerful, but it is not magic and it is not always right. Knowing its limits is what separates a smart...

AI will shape the coming decades. In this final chapter we look at how to use and build AI responsibly, how...