Video lessons
The clearest free AI lessons on YouTube, hand-picked and arranged by learning line. Videos load only when you press play, using YouTube's privacy-enhanced mode.
Build with AI
But what is a neural network?
3Blue1Brown · Build with AI
A visual first look at neurons, layers and weights. The clearest starting point for intuition.
Gradient descent, how neural networks learn
3Blue1Brown · Build with AI
How a network adjusts itself to reduce error, shown as rolling downhill on a landscape.
What is backpropagation really doing?
3Blue1Brown · Build with AI
The intuition behind how each weight learns its share of the blame.
Backpropagation calculus
3Blue1Brown · Build with AI
Optional maths deep-dive for those who want the chain rule behind backprop.
Transformers, the tech behind LLMs
3Blue1Brown · Build with AI
Tokens, embeddings and the transformer pipeline explained visually.
Attention in transformers, step by step
3Blue1Brown · Build with AI
How attention lets each word use context from the rest of the text.
Let's build GPT: from scratch, in code
Andrej Karpathy · Build with AI
Code a small GPT step by step. For developers who want to see every moving part.
Machine Learning for Everybody – Full Course
freeCodeCamp.org · Build with AI
A beginner-friendly machine-learning course with code.
Foundations
Intro to Large Language Models
Andrej Karpathy · Foundations
A one-hour talk on what LLMs are, how they're trained, and where they're heading.
Deep Dive into LLMs like ChatGPT
Andrej Karpathy · Foundations
A long, general-audience walkthrough of the full training stack behind chat assistants.
Introduction to Generative AI
Google Cloud Tech · Foundations
A short overview of generative AI concepts and terminology.
Prompt Craft
How I use LLMs
Andrej Karpathy · Prompt Craft
Practical, everyday use of AI assistants from one of the field's best teachers.
Prompt Engineering Tutorial
freeCodeCamp.org · Prompt Craft
A full course on prompting techniques and LLM behaviour.
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