Open Source AI

01.AI

01.AI (Chinese: 零一万物, Língyi Wànwù) is a Chinese artificial intelligence company founded in 2023 by Kai-Fu Lee that developed the Yi family of large language...

AI CompaniesLarge Language Models

AG2 (framework)

AG2 (formerly AutoGen) is an open-source Python framework for building applications composed of multiple cooperating large-language-model (LLM) agents. The...

AI AgentsDeveloper Tools

AI Fairness 360 (AIF360)

AI Fairness 360, abbreviated AIF360, is an open-source Python and R toolkit, originally created by IBM Research and released in September 2018, that detects...

AI EthicsAI Tools & Products

AI Habitat

AI Habitat (usually just Habitat) is an open-source simulation platform for embodied AI research, developed primarily by Meta AI (the group then known as...

Embodied AIMeta AI

ALOHA 2

ALOHA 2 is an open-source, low-cost bimanual teleoperation hardware platform released in February 2024 by an Google DeepMind led team working with the original...

AI HardwareRobotics

AUTOMATIC1111

AUTOMATIC1111 Stable Diffusion Web UI (commonly called A1111, SD WebUI, or simply Automatic1111) is the open-source, Gradio-based browser interface that became...

Developer ToolsGenerative AI

Agent Payments Protocol (AP2)

The Agent Payments Protocol (AP2) is an open specification that lets autonomous AI agents initiate, authorize, and settle payments on behalf of human users. It...

AI AgentsAI Infrastructure

Agent2Agent Protocol

The Agent2Agent (A2A) Protocol is an open standard for communication and interoperability between independent AI agents. Google announced it on April 9, 2025,...

AI AgentsGoogle

Agentic AI Foundation

The Agentic AI Foundation (AAIF) is a vendor-neutral, directed fund under the Linux Foundation that provides open governance for the standards and open-source...

AI AgentsAI Policy & Regulation

Agno

Agno is an open-source Python framework for building, running, and managing AI agents and multi-agent systems. It is model-agnostic, working with more than 30...

AI AgentsDeveloper Tools

Aider

Aider is an open-source AI pair programming tool that runs in the terminal and integrates directly with Git.[1] Created by Paul Gauthier and first released in...

AI Tools & ProductsDeveloper Tools

Allen Institute for AI

The Allen Institute for AI (branded since the early 2020s as Ai2, and historically abbreviated AI2) is a Seattle-based non-profit artificial intelligence...

Research Organizations

Alpaca (model)

Alpaca is an instruction-following language model released on March 13, 2023 by Stanford University's Center for Research on Foundation Models (CRFM), built by...

AI Models

Apache License 2.0

The Apache License, Version 2.0 is a permissive open source software license published by the Apache Software Foundation (ASF) in January 2004 and approved by...

Apache MXNet

Apache MXNet (pronounced "mix-net") was an open-source deep learning framework that combined imperative and symbolic execution in one runtime, created around...

AI InfrastructureArtificial Intelligence

Apertus

Apertus is a fully open, multilingual large language model developed in Switzerland and released on September 2, 2025, by EPFL, ETH Zurich, and the Swiss...

AI ModelsLarge Language Models

Apriel (ServiceNow)

Apriel is a family of open-weight small language models developed by ServiceNow, the enterprise-software company, through its in-house AI research...

AI ModelsLarge Language Models

Aquila (language model)

Aquila (Chinese: 悟道·天鹰, Wudao Tianying) is a series of open bilingual (Chinese and English) large language models developed by the Beijing Academy of...

Chinese AILarge Language Models

Arc Institute

The Arc Institute is an independent, nonprofit biomedical research organization, headquartered in Palo Alto, California, that funds long-horizon basic science...

AI Companies

Arize Phoenix

Arize Phoenix is an open-source AI observability and evaluation platform developed by Arize AI for tracing, evaluating, and debugging large language model...

AI CompaniesDeveloper Tools

Auto-GPT

AutoGPT (also stylized Auto-GPT) is an open-source autonomous AI agent framework that uses large language models (LLMs), primarily OpenAI's GPT-4, to...

AI Agents

AutoGPT Agent

AutoGPT Agent is a Custom GPT for ChatGPT listed in the GPT Store, built by agilayer.com. The GPT borrows its name and concept from AutoGPT, the open source...

AI Agents

AutoGen

AutoGen is an open-source programming framework developed by Microsoft Research for building AI agents and enabling cooperation among multiple agents to solve...

AI AgentsMicrosoft

Axolotl

Axolotl is a free and open source framework for fine-tuning and post-training large language models, written in Python and driven entirely by a single YAML...

Developer ToolsTraining & Optimization

Aya (Expanse / Vision)

Aya is an open multilingual model family and global research initiative from Cohere Labs (formerly Cohere For AI, or C4AI), the nonprofit research arm of the...

AI ModelsLarge Language Models

BGE (BAAI General Embedding)

BGE (BAAI General Embedding) is a family of open-source text embedding and reranking models from the Beijing Academy of Artificial Intelligence (BAAI), first...

Chinese AIInformation Retrieval

BabyAGI

BabyAGI is an open-source autonomous agent framework created by Yohei Nakajima and released on March 28, 2023. In roughly 140 lines of Python (105 lines of...

AI Agents

BentoML

BentoML is an open-source Python framework for packaging, serving, and deploying machine learning and AI models as production inference services. It was first...

Developer ToolsMLOps

Best Local and On-Device LLMs

As of July 2026, the best local LLM to run offline depends almost entirely on how much memory you can give it, so this guide ranks picks by hardware tier. The...

Large Language ModelsSmall Language Models

Best Open-Source LLMs

As of July 2026, the strongest open-weight large language model overall is GLM-5.2 from Z.ai (Zhipu AI), which tops the Artificial Analysis open-weight...

AI ModelsLarge Language Models

Best Small Language Models

As of July 2026, the two strongest small language models (open models under 15 billion parameters) are Google DeepMind's Gemma 4 12B and Alibaba's Qwen3.5-9B....

Large Language ModelsSmall Language Models

Black Forest Labs

Black Forest Labs (BFL) is a German-American artificial intelligence company founded in 2024 by Robin Rombach, Andreas Blattmann, Patrick Esser, and Dominik...

AI CompaniesDiffusion Models

Boltz

Boltz is a family of open-source biomolecular structure prediction models developed primarily at MIT's Computer Science and Artificial Intelligence Laboratory...

AI ModelsAI for Science

Boltz-2

Boltz-2 is an open-source biomolecular foundation model that jointly predicts the 3D structure of biological complexes and the binding affinity between small...

AI ModelsAI for Science

Browser Use

Browser Use is an open-source Python library that lets large language models control a web browser, turning any LLM into an agent that can browse the web,...

AI AgentsDeveloper Tools

Candle (HuggingFace Rust ML)

Candle is a minimalist machine learning framework written in pure Rust and published by Hugging Face under the huggingface/candle GitHub repository.[^1] The...

Developer ToolsMachine Learning

CatBoost

CatBoost is an open-source gradient boosted decision trees library developed by Yandex and released to the public on July 18, 2017 [1][5]. The name is a...

AlgorithmsMachine Learning

ChatDev

ChatDev is an open-source multi-agent software development framework in which large language model (LLM) agents play role-specialized parts (Chief Executive...

AI AgentsAI Code Generation

Chroma

Chroma is an open-source embedding database designed for artificial intelligence applications. It stores vector embeddings alongside their associated documents...

AI Infrastructure

Civitai

Civitai (pronounced "siv-it-eye") is the largest community hub and marketplace for sharing open-source image generation models, hosting hundreds of thousands...

AI Tools & ProductsImage Generation

Claude Agent SDK

The Claude Agent SDK is Anthropic's official software development kit for building custom AI agents powered by Claude, released on September 29, 2025 as the...

AI AgentsAnthropic

Cleanlab

Cleanlab is an open source Python library for automatically finding and fixing label errors and other data quality problems in machine learning datasets, and...

AI CompaniesMachine Learning

Cline (AI coding agent)

Cline is an open-source autonomous coding agent that runs as an extension inside VS Code and several other editors, with more than five million installs as of...

AI AgentsAI Code Generation

Clément Delangue

Clément Delangue is a French entrepreneur and the co-founder and CEO of Hugging Face, one of the most prominent open-source artificial intelligence platforms...

People

Code Llama

Code Llama is a family of open-weight large language models specialized for code generation and understanding, released by Meta AI on August 24, 2023. Built on...

AI Code GenerationLarge Language Models

CodeGeeX

CodeGeeX is an open series of multilingual code generation models developed by the Knowledge Engineering Group (KEG) and Data Mining lab at Tsinghua University...

AI Code GenerationChinese AI

CodeGemma

CodeGemma is a family of open code-generation models that Google released in April 2024, built on the first generation of its lightweight Gemma models. The...

AI Code GenerationGoogle

Codestral

Codestral is a family of code-specialized large language models developed by Mistral AI, beginning with Codestral 22B, released on May 29, 2024, as the...

AI Code GenerationAI Companies

CogVLM

CogVLM is an open vision language model developed by Zhipu AI and the Knowledge Engineering Group (KEG) at Tsinghua University. It was introduced in the paper...

Chinese AIMultimodal AI

CogVideoX

CogVideoX is a family of open-source text-to-video generation models developed by Zhipu AI and Tsinghua University (THUDM) that generate up to 10-second...

Chinese AIGenerative AI

Cohere Command A

Cohere Command A is a 111 billion parameter dense large language model released by Cohere on March 13, 2025, built for enterprise agents, Retrieval-Augmented...

AI ModelsLarge Language Models

ComfyUI

ComfyUI is a free, open-source node-based graphical user interface and backend for generative AI workflows, primarily focused on image generation using...

Developer ToolsGenerative AI

Command R+

Command R+ is a large language model developed by Cohere, the Toronto- and San Francisco-based enterprise artificial intelligence company, and released on...

AI ModelsLarge Language Models

Common Corpus

Common Corpus is the largest fully open, multilingual dataset for pretraining large language models, assembled and released by the French AI research lab...

Data & DatasetsNatural Language Processing

Common Pile

Common Pile v0.1 is an 8 terabyte corpus of openly licensed and public domain text, released on June 5, 2025, by EleutherAI and a consortium of more than two...

Data & DatasetsNatural Language Processing

Composio

Composio is an open-source AI agent tool integration platform that provides infrastructure for connecting large language models (LLMs) and AI agents to over...

AI AgentsAI Companies

Continue (software)

Continue is an open-source AI code assistant that integrates directly into code editors, letting developers connect any large language model (LLM) and...

AI Code GenerationAI Tools & Products

Cosmopedia

Cosmopedia is an open synthetic pretraining dataset released by Hugging Face in February 2024, made up of textbooks, blog posts, stories, and WikiHow-style...

Data & DatasetsLarge Language Models

CrewAI

CrewAI is an open-source multi-agent orchestration framework that enables developers to build teams of AI agents that collaborate to accomplish complex tasks....

AI AgentsDeveloper Tools

DBRX

DBRX is an open-weight mixture of experts large language model developed by Databricks and its Mosaic AI research team, released on March 27, 2024. It has 132...

AI CompaniesLarge Language Models