How LLMs Work

A comprehensive course on Large Language Models. From your first chat to understanding the technology powering ChatGPT, Claude, and beyond.

11 Modules Beginner + Technical tracks Free & open source

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For Everyone

No technical background needed. Learn to use AI assistants effectively.

S00

Getting Started with LLMs

What are LLMs and why should you care?
→ S01

Real-World Examples

Practical ways people use AI assistants daily
→ S02

Local vs Cloud LLMs

Understanding your options for running AI
→

Deep Dive

Technical

Based on Andrej Karpathy's 3.5-hour lecture. Understand how LLMs actually work.

01

Pre-Training Fundamentals

How models learn from internet-scale data
→ 02

Inference & Base Models

How text generation actually works
→ 03

Post-Training & Fine-Tuning

Making base models useful and safe
→ 04

Hallucinations & Mitigations

Why models make things up and how to prevent it
→ 05

Reinforcement Learning

Training models with human feedback
→ 06

Future Directions

Where LLM technology is heading
→ 07

LLM Observability

Monitoring and debugging LLM applications
→ 08

Memory Systems

Giving LLMs long-term memory
→