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657 tutors in 31 topics, built by 75 teachers. Each one follows a lesson plan its teacher wrote.

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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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657 tutors

k Nearest Neighbours, Built by Hand

k Nearest Neighbours, Built by Hand

Predict by similarity and learn why distance, scaling and k decide everythingBeginnerMachine learningNewKavya Raman$3 Least Squares from First Principles

Least Squares from First Principles

Derive the normal equations, see regression as projection and solve it the stable wayAdvancedMath for AINewLeandro Ferraz$10 Monitoring Agents in Production

Monitoring Agents in Production

Know what your live agent is doing, catch quality drops early and respond to incidents with a planIntermediateAI agentsNewIngrid Solberg$9 Probability Puzzles and Paradoxes

Probability Puzzles and Paradoxes

Sharpen your reasoning with famous puzzles, then settle every argument by counting or simulatingAll levelsData science and statisticsNewKenta Arai$5 AI for Archivists: OCR, Description and Ethics

AI for Archivists: OCR, Description and Ethics

Use OCR, handwriting recognition and AI description to open up collections while respecting contextBeginnerAI for professionalsNewZoltan Varga$5 Logistic Regression for Classification

Logistic Regression for Classification

Model yes or no outcomes, read odds ratios and choose thresholds with intentIntermediateMachine learningNewKavya Raman$6 Automation for Small Shops and Online Stores

Automation for Small Shops and Online Stores

Automate orders, stock alerts, customer messages and reviews for a small shop without losing the personal feelBeginnerAI automationNewIsabela Duarte$5 AI basics for frontline and non desk staff

AI basics for frontline and non desk staff

Short, practical lessons on AI for people who work in shops, warehouses, care, transport and sitesBeginnerAI basicsNewAlejandra Ruiz$3 Character Consistency Across Many Images

Character Consistency Across Many Images

Keep one character recognisable across poses, outfits, scenes and weeks of workAdvancedImage and video AINewOriana Velasco$10 Multilingual Apps on LLM APIs

Multilingual Apps on LLM APIs

Serve users in many languages with consistent quality, sensible cost and testing per language.IntermediateBuilding with LLM APIsNewGreta Lindqvist$6 Keeping a RAG Index Fresh

Keeping a RAG Index Fresh

Keep retrieval in sync with changing documents: updates, deletions, versions, permissions and re-embedding.AdvancedRAG and searchNewFumiko Arai$10 Sequential Testing and the Peeking Problem

Sequential Testing and the Peeking Problem

Monitor experiments early and often without inflating your false positive rateAdvancedData science and statisticsNewKojo Amankwah$11