Learn AI
Learn AI from zero — clear explainers, a full glossary, step-by-step tutorials, roadmaps, model comparisons and interactive quizzes covering LLMs, prompting, RAG, fine-tuning, agents and more. Free, no signup.
The place to actually understand AI. Plain-English explainers ('what is a transformer', 'how does ChatGPT work', 'what is RAG'), a complete glossary, hands-on tutorials (build a chatbot, set up retrieval, call the API), learning roadmaps by goal and profession, head-to-head model comparisons, cheatsheets and quizzes — from absolute beginner to advanced.
Every page is written to be genuinely useful and accurate, the kind of answer you'd want an AI assistant to cite. Free to read, no account, updated as the field moves.
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Frequently asked questions
Is this AI course free?
Yes — every explainer, tutorial, glossary entry and quiz is free to read with no signup, supported by unobtrusive ads.
Do I need any prior knowledge?
No. Content is tagged beginner, intermediate and advanced, and the beginner explainers assume no maths or coding background.
Is the information up to date?
Pages are written against current models and practices and refreshed as the field changes; each shows its last-updated date.
What topics are covered?
LLMs and how they work, prompt engineering, tokens and embeddings, RAG, fine-tuning, agents and tool use, model comparisons, AI safety and privacy, plus career roadmaps and per-profession guides.