from-scratch

Implement a ChatGPT-like LLM in PyTorch from scratch, step by step

Learn it. Build it. Ship it for others.

A 2.78-trillion-parameter Kimi K3 running inference on a single CPU in 8.24 GB of RAM. Portable C99: no BLAS, no framework, no GPU.

A shader-based software renderer written from scratch in C89

Build a modern LLM from scratch. Every line commented. Explained like we are five.

LeetCode for PyTorch — 65 ML/AI interview problems from real interviews at Google, Meta, Anthropic. Jupyter notebooks, an auto-grader, and an MCP AI tutor.

Agent工程师最全学习路径 · 从零精通 AI 工程 · 20 阶段 503 课 · 中文全量翻译 + 配套站点 + 动画讲解视频 · 如何成为 AI Agent 工程师的修成指南

Build a Large Language Model (From Scratch) book and Finetuned Models

从 MiniMind 源码读起,再延伸到现代大模型技术体系的中文学习笔记。主线逐行精读预训练 / SFT / DPO / PPO / GRPO 与训练机制;附录 17 篇进阶卷覆盖量化、投机解码、RLHF 全景、模型代际史等 MiniMind 没涉及、但进阶绕不开的主题。

从零搭建大模型知识库(Build LLM RAG Corpus from scratch)

Train Llama 3 models from scratch. Any scale, any personality. By Arianna Method.

LLM inference engine built from scratch in C++. No PyTorch, no frameworks.