Open source Companies

Meta AI is the AI research and model-building organisation of Meta Platforms. Founded in late 2013 as Facebook AI Research, it produced PyTorch and the Llama and Muse model families, and it is separate from the Meta AI assistant product.

DeepSeek is a Chinese AI company founded in Hangzhou in July 2023 as a spin-off of the AGI research lab of High-Flyer, a hedge fund. It releases its main models with open weights.

The Agentic AI Foundation is a Linux Foundation project launched in December 2025 to provide vendor-neutral governance for agent interoperability, security and accountability. It grew from three hosted projects to ten and passed 300 member organisations within a year.

Mila, the Quebec AI Institute, is a Montreal deep-learning institute founded in 1993 by Yoshua Bengio as LISA; its graduates include Ian Goodfellow and Hugo Larochelle.

A non-profit founded in 1998 that stewards the Open Source Definition and, since 2024, the Open Source AI Definition, setting a shared standard for what counts as open source.

NVIDIA Research is the research arm of the chipmaker NVIDIA, founded in 2006 with more than 200 scientists. It leads work on AI, self-driving cars, high-performance computing and graphics, and it builds the company's open Nemotron language models.

Alibaba Cloud is the cloud computing arm of Alibaba Group and the developer of the Qwen (Tongyi Qianwen) large language model family, which is released as both open weights and proprietary models.

Nonprofit AI research institute founded by Paul Allen in 2014 and based in Seattle, known for Semantic Scholar and for the openly released OLMo family of language models, whose training data, code and checkpoints are published alongside the weights.

Hugging Face is an AI platform company founded in 2016. Its Hub shares models, datasets and demo apps, its libraries include Transformers, and in September 2026 Nvidia agreed to acquire it.

AI21 Labs is an Israeli AI company founded in Tel Aviv in November 2017 that builds large language models, including the Jurassic and Jamba families, and the Wordtune writing assistant.

Stability AI is a British generative-AI company founded in 2019 in London. It is known for releasing the open-weight Stable Diffusion image model in 2022, and it has since faced copyright lawsuits over training data.

Zhipu AI, also known as Z.ai, is a Beijing company founded in 2019 as a Tsinghua University spin-out. It develops the GLM model family and related chatbot, video, agent and coding products, and listed in Hong Kong in January 2026.

MBZUAI, the Mohamed bin Zayed University of Artificial Intelligence, is a graduate AI university in Abu Dhabi, founded in 2019. It hosts the Institute of Foundation Models, which builds the K2, Jais and PAN model lines.

EleutherAI is a grassroots AI research collective that began as a Discord server in July 2020. It released The Pile and the open GPT-style models GPT-Neo, GPT-J and GPT-NeoX-20B, and in 2023 it became a nonprofit research institute.

MiniMax is a Shanghai-based AI company founded in December 2021 by computer-vision researchers from SenseTime. It builds text, speech and video models and consumer apps such as Talkie and Hailuo AI, and listed in Hong Kong in January 2026.

01.AI is a Beijing-based artificial intelligence company founded in 2023 by Kai-Fu Lee. It builds open and closed large language models, including the Yi series, and the Wanzhi enterprise platform.

Chinese AI company founded in Beijing in 2023 by Tsinghua schoolfriends Yang Zhilin, Zhou Xinyu and Wu Yuxin; maker of the long-context Kimi assistant and the K-series models, and one of China's fastest-rising model developers by valuation.

Mistral AI is a Paris-based company founded in April 2023. It builds open-weight and commercial large language models, the Le Chat assistant and the Vibe coding agent, and it has grown quickly through several large funding rounds.

StepFun (阶跃星辰) is a Shanghai AI company founded in April 2023 by former Microsoft staff. It builds multimodal Step-series models and has open-sourced several of them.

Baichuan Intelligence (百川智能) is a Beijing AI company founded in April 2023 by Wang Xiaochuan. It released open-source language models from 2023 and later focused on applying AI to healthcare.

Black Forest Labs is a German AI lab based in Freiburg im Breisgau, founded in 2024 by Robin Rombach, Andreas Blattmann and Patrick Esser. It develops the FLUX image models and raised a $300 million Series B in December 2025.

LMSYS (Large Model Systems) is a non-profit that started as a multi-university collaboration in 2023 and became an incorporated organisation in September 2024, building open models, serving systems and evaluation platforms such as Chatbot Arena, SGLang, FastChat and Vicuna.

Thinking Machines Lab is a San Francisco AI company founded in February 2025 by former OpenAI CTO Mira Murati. It built Tinker, an API for fine-tuning open-weight models, and released the open-weight Inkling model.

AGNTCY is an open-source project, open sourced by Cisco in March 2025 and welcomed by the Linux Foundation in July 2025, that gives AI agents from different vendors shared infrastructure for discovery, identity, messaging and observability.

A research institute of Abu Dhabi's Mohamed bin Zayed University of Artificial Intelligence, launched in May 2025, working from Abu Dhabi, Silicon Valley and Paris on open frontier foundation models including K2, Jais and PAN.

LG AI Research is the organisation behind EXAONE, a family of large language models it documents in technical reports and releases under its own EXAONE licence.

Aleph Alpha is the company behind Kolibri, an open-weight model released on 3 October 2026 and built around data sovereignty and German-language specialisation rather than raw scale.

Sarvam AI is an Indian company building a sovereign AI stack; its Sarvam-M, a post-trained 24-billion-parameter Mistral Small released under Apache-2.0, reports large gains on Indian-language benchmarks.

Meituan's LongCat team released LongCat-Flash, a 560-billion-parameter mixture-of-experts language model that activates roughly 27 billion parameters per token on average and ships with open weights under the MIT licence.

Ant Group is the company whose InclusionAI team released the open-weight Ling (Bailing) family of mixture-of-experts language models in 2025, including Ling-Lite and Ling-Plus, trained without premium GPUs and published under the MIT licence.

AMD is a chip designer whose data center AI business centres on Instinct GPUs and APUs, expanded through the Xilinx and ZT Systems acquisitions and capped by a 6-gigawatt OpenAI supply deal.

LangChain is the company behind the open-source LangChain and LangGraph frameworks and the commercial LangSmith platform, which developers use to observe, evaluate and deploy applications built on large language models.

The Technology Innovation Institute is a research centre of Abu Dhabi's Advanced Technology Research Council that works across ten technology fields and develops the Falcon family of language models, releasing model weights, technical reports and its own licence.

Writer is an enterprise AI company founded in 2020 by May Habib and Waseem AlShikh, selling brand-aware agents and governance tools to large companies, and publishing the Palmyra-mini family of small open models.

All Hands AI builds OpenHands, an open platform for AI agents that do software development work: working from conversations tied to repositories, opening pull requests and running automations.