Build Your Own ___
14 interactive courses. Each one: one page, one scroll, you end with a working thing. Zero assumed knowledge. Total understanding.
How every course works
- You start with nothing. No installs, no sign-ups, no prerequisites.
- Each chapter introduces one concept, then you use it immediately.
- By the end, you've built a working thing — not a toy, a real system.
- Concepts from earlier courses resurface later. Repetition is intentional.
- Each course stands alone, but the recommended order below builds on itself.
🧠 The Brain — How AI Thinks
1
Build Your Own LLM
the brain
Tokenization → attention → transformers → scaling laws. How every language model works.
"How does ChatGPT actually work?"
2
Build Your Own RAG System
the knowledge
Chunking → embeddings → vector search → grounded generation. Chat with any document.
"Chat with your PDF in 30 minutes"
3
Build Your Own Fine-Tune
the personality
Training data → loss curves → LoRA → evaluation. Teach AI your style permanently.
"Make AI learn YOUR style"
🤲 The Body — How AI Acts
4
Build Your Own Tool System
the hands
Function calling → ReAct loop → skills → MCP protocol. Give AI the ability to do things.
"Everyone's talking about MCP. Build one."
5
Build Your Own Vision Model
the eyes
Patches → ViT → CLIP → vision-language models. Teach AI to see photos and screens.
"Teach AI to see your photos"
6
Build Your Own Voice Assistant
the ears & mouth
Waveforms → Whisper → LLM → TTS. Build something you talk to.
"Talk to your creation"
7
Build Your Own AI Agent
the body
API → memory → tools → security. The capstone: assemble every organ into one creature.
"Build your own ChatGPT"
🛡️ The Discipline — How AI Stays Good
8
Build Your Own Eval System
the mirror
Metrics → test sets → LLM-as-judge → A/B testing. Measure whether it actually works.
"Is your AI actually good?"
9
Build Your Own Guardrails
the immune system
Prompt injection → input/output validation → hallucination detection → defense in depth.
"Stop AI from going rogue"
10
Build Your Own Data Pipeline
the food
Extraction → cleaning → chunking → labeling → synthetic data. Your AI is only as good as its data.
"Garbage in, garbage out — fixed"
🚀 The Mission — How AI Becomes a Business
11
Build Your Own AI Company
the soul
Landscape → business models → failure patterns → the playbook. PG, Ng, and Altman's advice.
"The business of AI, from people who've done it"
12
Build Your Own AI Chief of Staff
the amplifier
Inbox triage → morning briefs → integrations → trust boundaries. Your AI productivity system.
"An AI that manages your day while you sleep"
🔬 Bonus — Frontier Research
B1
Build Your Own 3D World
spatial AI
Depth estimation → gaussian splats → SAM → geo-localization. Spatial AI for sports broadcasting.
"How AI reconstructs the world from video"
📋 Reference
📋 AI Model Cheat Sheet
Every major model compared. Filterable, sortable, with cost calculator. Updated February 2026.
🎤 Founder's Briefing
10 AI concepts explained for cocktail parties. The 30-second version of everything.