Company🇺🇸 Menlo Park
Meta257 people
Meta’s AI ecosystem spans long-term research through FAIR, open model development including the Llama family, and large-scale product deployment. Its research has also produced widely used infrastructure such as PyTorch and influential work across vision, language, speech, and embodied intelligence.
Company🇺🇸 United States
Hugging Face23 people
Hugging Face builds open tools and infrastructure for machine learning. Its Hub supports versioned models, datasets, and interactive applications, while libraries including Transformers connect researchers and developers with training, evaluation, and deployment workflows.
Company🇨🇳 Hangzhou
Alibaba13 people
Alibaba is a global technology group whose AI stack spans the Qwen family of open-weight language and multimodal models, Alibaba Cloud's model-training and inference platform, proprietary AI accelerators, and AI applications embedded across commerce and enterprise services.
Company🇨🇳 Hangzhou
DeepSeek13 people
DeepSeek develops open-weight foundation models for reasoning, coding, agents, and general language tasks. Its mixture-of-experts architectures, reinforcement-learning methods, permissively released weights, and detailed technical reports have made it an important reference point for efficient frontier-model development and open model competition.
Non-profit🇺🇸 United States
EleutherAI6 people
Grassroots non-profit research collective known for open language models (GPT-Neo, GPT-J) and the Pile dataset.
Company🇺🇸 United States
Essential AI5 people
AI startup co-founded by Transformer first author Ashish Vaswani. Vaswani's LinkedIn profile shows his Essential AI role ending in June 2026 and a new NVIDIA computer-scientist role beginning the same month, consistent with an NVIDIA acqui-hire.
Company🇨🇳 Shanghai
StepFun AI5 people
StepFun develops frontier foundation models and multimodal AI systems spanning text, vision, speech, and video, with a long-term focus on advancing toward Artificial General Intelligence (AGI).
Company🇨🇳 China
01.AI4 people
Chinese AI company founded by Kai-Fu Lee, best known for the Yi family of open-weight large language models and consumer AI products.
Company🇫🇷 France
Kyutai4 people
Paris-based open AI research lab focused on open science, known for the Moshi real-time speech model.
Company🇨🇳 China
Z.ai4 people
Z.ai develops the GLM family of open foundation models spanning language, vision, video generation, coding, and agents. Originating from Tsinghua University research, its work includes the ChatGLM open-model ecosystem and long-context models designed for sustained software-engineering and agentic tasks.
Company🇺🇸 United States
Physical Superintelligence3 people
AI-for-science company developing systems that reason about, computationally validate, and help commercialize new physics; creator of the open-source Get Physics Done research agent.
Academic🇮🇳 Chennai
AI4Bharat2 people
Research lab at IIT Madras working on developing open-source datasets, tools, models and applications for Indian languages.
Non-profit
fast.ai2 people
A research and education initiative that makes deep learning more accessible through free courses, open-source software, practical research, and an international learning community.
Company🇺🇸 New York
MongoDB2 people
MongoDB is a database company founded in 2007, known for its eponymous open-source document-oriented database and the Atlas managed cloud service.
Company🇺🇸 Redwood City
Apodex1 person
Apodex develops open and commercial AI agents for long-horizon research. Its systems plan investigations, search the web, use tools and independently verify evidence before synthesizing answers for scientific and other complex work.
Company🇺🇸 United States
Arklex AI1 person
AI agent developer framework spun out of Columbia University's NLP lab in 2023 by Professor Zhou Yu. Provides open-source multi-agent orchestration and vertical agents for sales, customer service, and e-commerce.
Non-profit🇨🇳 Beijing
Beijing Academy of Artificial Intelligence1 person
Beijing-based AI research institute, also known as BAAI, known for large-scale open research programs and models such as the WuDao series.
Company🇺🇸 San Francisco
Deep Cogito1 person
Develops open-weight Cogito language models that can answer directly or reason before responding. Its research explores iterative self-improvement—training models to internalize useful reasoning rather than relying only on longer inference-time search.
Company🇺🇸 San Francisco
Gradio1 person
Gradio is an open-source Python library for building machine-learning demos and web interfaces; it was acquired by Hugging Face in 2021.
Company🇺🇸 New York
Grafana Labs1 person
Open-source observability and monitoring company behind the Grafana dashboards, founded in 2014.
Company🇬🇧 United Kingdom
Intelligent Internet1 person
Open-source AI organization founded by Emad Mostaque, founder of Stability AI. Builds decentralized, open AI systems — including the II-Agent assistant — aimed at democratizing access to intelligence.
Company🇩🇪 Berlin
Jina AI1 person
Develops multilingual and multimodal embeddings, rerankers, readers, and small language models for search and retrieval-augmented generation. Acquired by Elastic in 2025, Jina continues as its search-model brand.
Non-profit🇩🇪 Germany
LAION1 person
German nonprofit (Large-scale Artificial Intelligence Open Network) founded by Christoph Schuhmann and collaborators. Releases large open image-text datasets — including LAION-5B — used to train open generative models.
Company🇺🇸 San Francisco
LangChain1 person
LangChain is an open-source framework and company founded in 2022 by Harrison Chase for building applications powered by large language models.