A collective list of free APIs

📚 Freely available programming books

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

An opinionated list of Python frameworks, libraries, tools, and resources

All Algorithms implemented in Python

The agent engineering platform

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Tensors and Dynamic neural networks in Python with strong GPU acceleration

Robust Speech Recognition via Large-Scale Weak Supervision

Animation engine for explanatory math videos

《动手学深度学习》：面向中文读者、能运行、可讨论。中英文版被70多个国家的500多所大学用于教学。

A high-throughput and memory-efficient inference and serving engine for LLMs

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

🧑‍🏫 60+ Implementations/tutorials of deep learning papers with side-by-side notes 📝; including transformers (original, xl, switch, feedback, vit, ...), optimizers (adam, adabelief, sophia, ...), ga…

Unsloth Studio is a web UI for training and running open models like Gemma 4, Qwen3.5, DeepSeek, gpt-oss locally.

Clone a voice in 5 seconds to generate arbitrary speech in real-time

1 min voice data can also be used to train a good TTS model! (few shot voice cloning)

Ultralytics YOLO 🚀

Deepfakes Software For All

Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks.

aider is AI pair programming in your terminal

A cryptocurrency trading API with more than 100 exchanges in JavaScript / TypeScript / Python / C# / PHP / Go

Making large AI models cheaper, faster and more accessible

ChatGLM-6B: An Open Bilingual Dialogue Language Model | 开源双语对话语言模型

Qlib is an AI-oriented Quant investment platform that aims to use AI tech to empower Quant Research, from exploring ideas to implementing productions. Qlib supports diverse ML modeling paradigms, i…

基于Python的开源量化交易平台开发框架

Build, run, manage agentic software at scale.

A generative speech model for daily dialogue.

We write your reusable computer vision tools. 💜

Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and…