AI basics: free course
How AI works, prompts and AI at work. How AI works · Where AI’s knowledge comes from · Prompts like a pro · AI at work · AI to the max
1. How AI works
What AI and neural nets are, tokens, meaning as numbers and why answers vary.
- AI, ML, neural nets: what's what
- How a neural network thinks
- Tokens and the context window
- Embeddings: meaning as coordinates
- Why the answers differ every time
2. Where AI’s knowledge comes from
Data, the three training stages of a chatbot, AI make-believe and how to check quality.
- Data decides everything
- How a chatbot is trained: 3 stages
- Hallucinations and privacy
- How to tell if an AI is good
3. Prompts like a pro
Prompt structure, how a chat works, examples, step-by-step reasoning and the answer format you need.
- A prompt that works
- Inside a chat: system, user, history
- Show an example: few-shot
- Think step by step
- Get the answer in the right format
4. AI at work
AI with your documents, images and voice, agents, safety and AI in real life.
- AI + your documents (RAG)
- Images, voice, video
- Agents: AI that takes action
- Safety: your data and prompt injection
- AI in real life: models get old
5. AI to the max
Where AI really helps, why models are huge, AI judges and how to get the best answer.
Is the course free?
Yes. All lessons are free, and the first one opens without signing up. A free account only saves your progress.