Open Source

The agent engineering platform

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

LlamaIndex is the leading document agent and OCR platform

The official Python library for the OpenAI API

Google Gen AI Python SDK provides an interface for developers to integrate Google's generative models into their Python applications.

The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents

Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]

Get up and running with Kimi-K2.5, GLM-5, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.

LLM inference in C/C++

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

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

Universal LLM Deployment Engine with ML Compilation

An open platform for training, serving, and evaluating large language models. Release repo for Vicuna and Chatbot Arena.

Model Context Protocol Servers

A programming framework for agentic AI

Production-ready platform for agentic workflow development.

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

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Trigger.dev – build and deploy fully‑managed AI agents and workflows

The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.

Stable Diffusion web UI

🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

Containers for machine learning

⚡ Fastest way to serve open source ML models to millions

Tensors and Dynamic neural networks in Python with strong GPU acceleration

🤗 The largest hub of ready-to-use datasets for AI models with fast, easy-to-use and efficient data manipulation tools

Data validation using Python type hints

FastAPI framework, high performance, easy to learn, fast to code, ready for production

Build and share delightful machine learning apps, all in Python. 🌟 Star to support our work!

Streamlit — A faster way to build and share data apps.

🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

The React Framework

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

A utility-first CSS framework for rapid UI development.

A modern runtime for JavaScript and TypeScript.

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

🎥 Make videos programmatically with React

💌 Build and send emails using React

An extremely fast Python linter and code formatter, written in Rust.

⛅️ Home to Wrangler, the CLI for Cloudflare Workers®