Educational Codebase & Deep Learning Tutorial
91.0k 2026-04-18
rasbt/LLMs-from-scratch
A comprehensive, step-by-step guide and codebase for building a ChatGPT-like Large Language Model from scratch using PyTorch.
Core Features
Step-by-step implementation of GPT-like LLMs.
Covers pretraining and finetuning processes.
Includes code for loading and finetuning larger pretrained models.
Mirrors techniques used in developing foundational LLMs like ChatGPT.
Official code repository for the 'Build a Large Language Model (From Scratch)' book.
Quick Start
git clone --depth 1 https://github.com/rasbt/LLMs-from-scratch.gitDetailed Introduction
This repository serves as the official code companion for the book 'Build a Large Language Model (From Scratch)', offering a practical, hands-on approach to understanding and constructing LLMs. It meticulously guides users through the entire lifecycle of an LLM, from initial development to pretraining and finetuning, all implemented in PyTorch. By coding a small-but-functional model from the ground up, learners gain deep insights into the internal workings of large-scale foundational models, making complex concepts accessible and actionable for deep learning practitioners and enthusiasts.