Let's build GPT: from scratch, in code, spelled out. Andrej Karpathy
7.1M views · 156.3K likes · 3 years ago
Learn ChatGPT & LLMs — Free Video Roadmap
A step-by-step path through the best free ChatGPT & LLMs videos on YouTube — beginner to advanced, in the order that actually makes sense. YouTube channels covering ChatGPT, GPT, Claude, and large language models for developers. Learn prompt engineering, API integration, RAG, and building AI-powered applications.
To learn ChatGPT & LLMs in 2026, follow this order: start with a beginner crash course, then a full course, then advanced deep dives. This roadmap sequences 20 of the best free YouTube videos — beginning with "Let's build GPT: from scratch, in code, spelled out." by Andrej Karpathy (7,134,635 views).
Step 1
Start Here
Beginner-friendly ChatGPT & LLMs intros and crash courses
5:19 
18:41 OpenAI Embeddings and Vector Databases Crash Course Adrian Twarog
694.7K views · 15.7K likes · 2 years ago
49:17 FULL Claude Tutorial for Beginners in 2026! (Become a PRO!) AI Foundations
606.7K views · 16K likes · 2 months ago
7:08 Step 2
Core Skills
Full courses and comprehensive ChatGPT & LLMs tutorials
3:31:24 
4:10:43 CLAUDE CODE FULL COURSE 4 HOURS: Build & Sell (2026) Nick Saraev
1.4M views · 45.4K likes · 3 months ago
36:15 Transformer Neural Networks, ChatGPT's foundation, Clearly Explained!!! StatQuest with Josh Starmer
1.1M views · 25.5K likes · 2 years ago
2:13:35 
4:01:26 
3:35:30 Step 3
Advanced & Deep Dives
Go deeper into ChatGPT & LLMs internals and real-world use
5:56 Master LLM Inference Engineering by MIT, Purdue PhDs | Get the Early Access Vizuara
762.1K views · 148 likes · 1 month ago
45:15 Advanced Power BI Project • End-to-End • ChatGPT • Custom Visuals Power BI Park
365K views · 8.1K likes · 2 years ago
56:47 Become a Claude Expert in 1 Hour | Everything You Need to Know Ishan Sharma
282.9K views · 7.6K likes · 1 month ago
19:13 Full Claude Tutorial: Beginner to Advanced in 19 Minutes Futurepedia
271.1K views · 5.6K likes · 1 month ago
Step 4
Stay Current
The freshest ChatGPT & LLMs videos from the last 6 months
7:22 Tragic mistake... Anthropic leaks Claude’s source code Fireship
3.2M views · 99.2K likes · 1 month ago
11:53 
5:00 
5:37 Claude Mythos is too dangerous for public consumption... Fireship
1M views · 35.3K likes · 1 month ago
5:12 Want a roadmap tailored to your goal and experience? Try the free AI learning planner →