KIMI FOUNDER JUST DROPPED A 40-MINUTE MASTERCLASS.
The exact architecture behind a $20B valuation — there's no faster way to learn how to build AI agents right now.
Bookmark this for the weekend.
40 minutes. zero fluff. from the person who built it.
Optimization → Linear Attention → Sub-Agents → Open Systems → Cash
ANDREJ KARPATHY JUST DROPPED THE MOST IMPORTANT PYTHON FILE FOR ANYONE LEARNING LLMs
He wrote https://t.co/WMajAg17sX a complete GPT from scratch... no libraries... no frameworks... pure python
the entire algorithm fits in one file
the only imports are math, random & os
here's what's inside:
▫️a from-scratch autograd engine (yes, he built backprop by hand).
▫️a full transformer token embeddings, positional embeddings, multi-head attention, MLP, RMSNorm
▫️Adam optimizer implemented from scratch
▫️training loop + inference in under 200 lines
the comment at the top says it all:
"this file is the complete algorithm.
everything else is just efficiency."
and the community went insane 5000+ stars, ports in rust, go, OCaml, julia, CUDA & JS already exist
if you've ever used transformers without really understanding what's happening underneath this is your weekend project
read it once...you'll never look at LLMs the same way
→https://t.co/2MbPGJJeJ1
Karpathy didn't make a course.
He made THE course.
3 hours. Free.
Tokenization. Attention. Hallucinations. Tool use. RLHF. DeepSeek. AlphaGo.
Every behavior you've ever wondered about in an LLM - where it comes from, why it exists, how it was engineered.
The gap between engineers who understand this and engineers who don't isn't technical depth.
It's the ability to conceive of entirely different things.
Anthropic pays engineers $750,000+ a year to understand how LLMs work.
Stanford just put a 2 hour lecture that covers 80% of it for FREE.
Bookmark this. Give it 2 hours today.
It might be the highest ROI thing you do this month: