Open Source

Open Source AI

Trending GitHub projects and open-source AI stacks — agents, LLMs, RAG, vision, audio, MCP and more. Everything links to the official repository.

huggingface/transformers

LLMs · Python · Apache-2.0

State-of-the-art Machine Learning for PyTorch, TensorFlow and JAX.

The default library for loading, training and serving thousands of pretrained transformer models from Hugging Face.
ELI5: A giant toolbox that lets any programmer download and use famous AI brains with just a few lines of code.
138K 27.9K PythonUpdated 2026-07-15
TrendingRecently Updated

ollama/ollama

LLMs · Go · MIT

Get up and running with large language models locally.

One-command local runtime for Llama, Qwen, DeepSeek, Mistral and more — with a clean CLI and REST API.
ELI5: Install once and any open AI model runs on your laptop like a native app.
105K 8.7K GoUpdated 2026-07-15
Trending

langchain-ai/langchain

RAG · Python · MIT

Framework for building context-aware, reasoning applications with LLMs.

The most popular framework for composing chains, agents, retrievers and tool-using LLM apps.
ELI5: Lego blocks for LLM apps — snap together a chatbot that can search, remember and call your APIs.
95K 15.4K PythonUpdated 2026-07-14
Trending

open-webui/open-webui

LLMs · Svelte · MIT

User-friendly self-hosted WebUI for Ollama and OpenAI-compatible APIs.

A polished ChatGPT-like interface for any local or hosted OpenAI-compatible endpoint.
ELI5: A private ChatGPT clone you can run on your own computer.
90K 11.5K SvelteUpdated 2026-07-14
Trending

deepseek-ai/DeepSeek-V3

Open Source Models · Python · MIT

Reference code and weights for DeepSeek-V3 mixture-of-experts model.

State-of-the-art open MoE model competitive with closed frontier systems on reasoning and coding.
ELI5: A very smart open AI made in China that anyone can download and run.
90K 10.2K PythonUpdated 2026-07-11
Trending

openai/whisper

Audio · Python · MIT

Robust speech recognition via large-scale weak supervision.

OpenAI's open-source multilingual speech recognition model — the industry baseline for transcription.
ELI5: Type out anything spoken in almost any language.
72K 8.5K PythonUpdated 2026-06-20

comfyanonymous/ComfyUI

Computer Vision · Python · GPL-3.0

The most powerful and modular diffusion model GUI, API and backend.

Node-based interface for Stable Diffusion, Flux and video models. Endless workflow customization.
ELI5: Wire together nodes like a synthesizer to make AI images and videos exactly how you want.
65K 7.2K PythonUpdated 2026-07-15
Trending

vllm-project/vllm

Inference · Python · Apache-2.0

High-throughput and memory-efficient inference and serving engine for LLMs.

Backed by UC Berkeley — PagedAttention makes vLLM the go-to engine for serving open LLMs at scale.
ELI5: A super-fast waiter that serves LLM answers to thousands of users without dropping any.
42K 6.4K PythonUpdated 2026-07-16
TrendingRecently Updated

run-llama/llama_index

RAG · Python · MIT

Data framework for LLM applications over private or domain-specific data.

Ingest, index and query your own documents with any LLM. Strong RAG, agents and workflow primitives.
ELI5: Point it at your PDFs and it teaches an AI to answer questions using them.
39K 5.6K PythonUpdated 2026-07-13
Recently Updated

All-Hands-AI/OpenHands

AI Agents · Python · MIT

OpenHands (formerly OpenDevin): a platform for autonomous software engineers.

Open agentic coder that plans, edits code, runs commands and browses the web.
ELI5: An open source AI teammate that can write and run code for you.
38K 4.3K PythonUpdated 2026-07-16
Trending

microsoft/autogen

AI Agents · Python · MIT

A programming framework for agentic AI from Microsoft Research.

Multi-agent conversations with tools, code execution and human-in-the-loop patterns.
ELI5: A team of AI helpers that talk to each other and to you to solve tricky tasks.
33K 4.9K PythonUpdated 2026-07-12
Recently Updated

ultralytics/ultralytics

Computer Vision · Python · AGPL-3.0

YOLOv8 / YOLO11 for detection, segmentation, pose and classification.

The most widely used real-time object detection framework, with pretrained checkpoints and CLI.
ELI5: Real-time AI eyes that spot objects in images and video.
33K 6.5K PythonUpdated 2026-07-14

crewAIInc/crewAI

AI Agents · Python · MIT

Framework for orchestrating role-playing, autonomous AI agents.

Define agents with roles, tools and goals — CrewAI coordinates them to collaborate on real work.
ELI5: Give each AI a job title and let them work together like a tiny startup.
27K 3.8K PythonUpdated 2026-07-15
Trending

ManimCommunity/manim

Education · Python · MIT

Animation engine for explanatory math and AI videos.

The community fork of 3Blue1Brown's animation engine — widely used for AI/ML educational content.
ELI5: Write code, get beautiful math and AI videos.
25K 1.8K PythonUpdated 2026-07-01

meta-llama/llama-models

Open Source Models · Python · Llama Community

Utilities intended for use with Llama models.

Official reference implementations, tokenizers and inference helpers for Meta's Llama family.
ELI5: Meta's home base for their open Llama AI brains.
22K 3.1K PythonUpdated 2026-07-10
Trending

continuedev/continue

Coding · TypeScript · Apache-2.0

Open-source AI code assistant for VS Code and JetBrains.

Bring any model — local or cloud — into your editor with autocomplete, chat and slash commands.
ELI5: An open Copilot that lets you pick which AI helps you code.
22K 2.4K TypeScriptUpdated 2026-07-15
Trending

QwenLM/Qwen

Open Source Models · Python · Apache-2.0

Chat, code and vision-language models from the Qwen team.

Alibaba's Qwen open-weight models — strong multilingual, coding and multimodal performance.
ELI5: Alibaba's open-source AI that speaks many languages fluently.
19K 1.7K PythonUpdated 2026-07-13
Recently Updated

BerriAI/litellm

LLMs · Python · MIT

Call every LLM API using the OpenAI format (100+ providers).

Drop-in OpenAI-compatible router for OpenAI, Anthropic, Gemini, Bedrock, Groq, Vertex and more.
ELI5: One universal remote for every AI model — same buttons, no matter the brand.
16K 2.1K PythonUpdated 2026-07-15
Recently Updated

modelcontextprotocol/modelcontextprotocol

MCP · TypeScript · MIT

An open protocol for connecting LLMs with data, tools and workflows.

Anthropic's MCP standardizes how AI apps expose tools, resources and prompts to any LLM client.
ELI5: One universal plug so any AI assistant can talk to any tool.
12K 1.2K TypeScriptUpdated 2026-07-16
TrendingRecently Updated

huggingface/lerobot

Robotics · Python · Apache-2.0

State-of-the-art AI for real-world robotics in PyTorch.

Hugging Face's open stack for training, evaluating and deploying robot learning policies.
ELI5: An open kit that teaches real robots new tricks using AI.
8.4K 800 PythonUpdated 2026-07-13
Recently Updated

Project-MONAI/MONAI

Healthcare · Python · Apache-2.0

AI framework for medical imaging, built on PyTorch.

Open framework backed by NVIDIA and King's College London for clinical imaging AI.
ELI5: Toolkit for AI that reads medical scans like MRIs and CTs.
6.1K 1.1K PythonUpdated 2026-07-08