The AI Stack

Learn how AI products are really built: chips, models, data, agents, apps and evaluation. Build your own AI assistant in your browser, one layer at a time.

by Teyro

100 lessons
5 units
19h 27m
Up to 1,450 XP

I wrote this one myself. Start now and I'll count your streak from lesson one.

What you'll learn

Trace a message through every layer of the AI stack
Explain GPUs, tokens, context windows and what drives cost
Compare closed and open-weight models fairly
Build search and answers from your own documents (RAG)
Add tools, agents and guardrails safely
Evaluate, trace and govern an AI product

Course path

5 units · 100 lessons

"Add AI. How much?"10 min · InteractiveFree+10 XP
Two seconds after Send12 min · InteractiveFree+10 XP
The six layers11 min · InteractiveFree+10 XP
Myths about AI apps11 min · InteractiveFree+10 XP
Checkpoint: the map12 min · InteractiveFree+20 XP
Which layer is broken?11 min · InteractiveFree+10 XP
Build vs buy, per layer11 min · InteractiveFree+10 XP
Who works on each layer11 min · InteractiveFree+10 XP
A stack in 12 lines13 min · InteractiveFree+10 XP
Checkpoint: the toy stack12 min · InteractiveFree+20 XP
Why the stack keeps changing11 min · InteractiveFree+10 XP
Kavya's Friday demo11 min · InteractiveFree+10 XP
What it costs to answer once12 min · InteractiveFree+10 XP
Where AI goes wrong12 min · InteractiveFree+10 XP
Checkpoint: cost and failure12 min · InteractiveFree+20 XP
Questions to ask any AI product11 min · InteractiveFree+10 XP
Joel's notebook12 min · InteractiveFree+10 XP
The plan to v1.011 min · InteractiveFree+10 XP
One line for Mr Rao11 min · InteractiveFree+10 XP
Chapter Challenge: Ask Rao v0.115 min · InteractiveFree+20 XP
Unit 1 chestFinish every lesson in this unit+50 XP

Why AI needs special chips10 min · Interactive
CPU vs GPU11 min · Interactive
Memory is the limit12 min · Interactive
From sand to chip11 min · Interactive
Checkpoint: the chip layer12 min · Interactive
Why a few companies matter11 min · Interactive
Training vs running a model11 min · Interactive
Renting GPUs: the cloud11 min · Interactive
Running models on your own machine12 min · Interactive
Checkpoint: rent, run or shrink12 min · Interactive
Edge: AI on phones11 min · Interactive
Tokens per second11 min · Interactive
Energy and the cost of compute11 min · Interactive
API, cloud GPU or laptop?12 min · Interactive
Checkpoint: speed, energy, choice12 min · Interactive
Kavya's laptop experiment11 min · Interactive
Common compute mistakes12 min · Interactive
Reading a GPU spec sheet11 min · Interactive
The hosting decision12 min · Interactive
Chapter Challenge: Ask Rao v0.215 min · Interactive
Unit 2 chestFinish every lesson in this unit+50 XP

Teyro Original · Chapter 1 free, then Teyro Pro

All courses

AI · Beginner