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Foundations 89

All Foundations89 AI basics25 How language models work23 AI safety and ethics49

Everyday AI 91

All Everyday AI91 Prompting20 ChatGPT and Claude at work25 AI for writing29 AI for research and study33

Building with AI 162

All Building with AI162 Python for AI21 Building with LLM APIs30 RAG and search21 Evaluation and testing21 AI agents31 AI automation25 AI coding assistants30

Machine learning 149

All Machine learning149 Machine learning35 Data science and statistics30 Math for AI23 Deep learning28 NLP14 Computer vision14 Fine tuning and training12 MLOps and deployment18

Creative AI 77

All Creative AI77 Image and video AI58 Audio and voice AI12 AI for design33

AI at work 145

All AI at work145 AI for business34 AI for marketing and sales23 AI for product and operations28 AI for education28 AI for professionals29 AI careers18

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How language models work Clear all

Embeddings: meaning as numbers

Embeddings: meaning as numbers

See how words and documents become vectors, and why similar meanings end up close togetherIntermediateHow language models work4.7(3)52 lessonsSampleBastian Weber$6 From pretrained model to helpful assistant

From pretrained model to helpful assistant

Learn how instruction tuning, preference training and system prompts turn a predictor into an assistantAdvancedHow language models work4.5(2)51 lessonsSampleBastian Weber$9 The attention formula, step by step

The attention formula, step by step

Work through queries, keys, values and softmax by hand until the transformer equation makes senseAdvancedHow language models work4.5(2)48 lessonsSampleBastian Weber$9 Training versus inference, clearly

Training versus inference, clearly

Learn what happens when a model is trained, what happens when you use it, and why it mattersIntermediateHow language models work4.5(2)46 lessonsSampleBastian Weber$5 Interpretability: looking inside neural networks

Interpretability: looking inside neural networks

Learn how researchers try to understand what happens inside models, and what we still cannot seeAdvancedAI safety and ethics4.5(2)39 lessonsSampleBao Tran$12 Scaling laws and where AI progress comes from

Scaling laws and where AI progress comes from

Understand how compute, data and model size drive progress, and the debates about what comes nextAdvancedHow language models work4.5(2)33 lessonsSampleBenedict Asante$10 Reading AI benchmarks and research claims

Reading AI benchmarks and research claims

Judge leaderboards, benchmark scores and model comparisons with a researcher's critical eyeAdvancedHow language models work4.5(2)19 lessonsSampleBruno Azevedo$9 Multimodal models: text, images and sound together

Multimodal models: text, images and sound together

See how one model can read images, hear audio and write text, and where it still stumblesIntermediateHow language models workNewBenedict Asante$6 Attention without the maths

Attention without the maths

Understand how transformers let each word look at the others, explained with pictures and storiesIntermediateHow language models workNewBastian Weber$5 Why some models are fast: efficiency tricks inside

Why some models are fast: efficiency tricks inside

Learn the techniques that make models faster and cheaper: from mixture of experts to KV cachingAdvancedHow language models workNewBenedict Asante$11 What an AI answer really costs

What an AI answer really costs

Understand the compute, tokens and money behind AI answers and why prices vary so muchIntermediateHow language models workNewBenedict Asante$5