Open source focus

Open Source Alternatives to LMArena

13 open source AI options similar to LMArena, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Hugging Face76
AINew York, United States$395.2M
Hugging Face is the leading AI community and platform for machine learning collaboration, enabling developers to build, share, and deploy models, datasets, and applications.
Open source · Self-hostable
LibreChat10
AINew York, United States
Open-source, self-hostable AI chatbot UI.
Open source · Self-hostable
DragonflyDB61
DatabaseTel Aviv, Israel$21.0M
Source-available, multi-threaded Redis replacement for modern cloud workloads.
Open source · Self-hostable
MariaDB61
DatabaseRedwood City, United States$131.0M
A cloud database company providing a unified platform for transactional, analytical, and AI workloads.
Open source · Self-hostable
Akash Network56
DePINSan Francisco, United States$2.0M
Decentralized cloud marketplace for compute resources, leveraging blockchain technology (DePIN).
Open source · Self-hostable
Mozilla Firefox54
InternetSan Francisco, United States$2.3M
Open-source web browser focused on privacy, user control, and an open internet.
Open source · Self-hostable
Visual Layer50
DatabaseTel Aviv, Israel$7.0M
AI-powered database for visual data, enabling intelligent search and analysis of images and videos.
Open source · Self-hostable
Responsive35
EnterpriseSan Francisco, United States
Platform for developers building stateful reactive applications on the modern cloud with object store native databases.
Open source · Self-hostable
PyTorch25
AISan Francisco, United States
An open-source machine learning framework for accelerating AI research and production deployment.
Open source · Self-hostable
TensorFlow10
AIMountain View, United States
An open-source machine learning platform for building and deploying AI applications.
Open source · Self-hostable
Ajthinking7
Open Source
Code, AI, GIS, maps, open-source tooling, city planning, and marketing automation.
Open source
Agentic Commerce Protocol (ACP)3
AISan Francisco, United States
Open-source standard enabling secure, programmatic commerce transactions between AI agents and online businesses.
Open source · Self-hostable
Model Context Protocol (MCP)2
AISan Francisco, United States
An open standard for connecting AI assistants to external data sources and tools.
Open source · Self-hostable

Company	Sector	License	HQ	Funding	Score
Hugging FaceHugging Face is the leading AI community and platform for machine learning collaboration, enabling developers to build, share, and deploy models, datasets, and applications.	AI	Open source · Self-hostable	New York, United States	$395.2M	76
LibreChatOpen-source, self-hostable AI chatbot UI.	AI	Open source · Self-hostable	New York, United States	—	10
DragonflyDBSource-available, multi-threaded Redis replacement for modern cloud workloads.	Database	Open source · Self-hostable	Tel Aviv, Israel	$21.0M	61
MariaDBA cloud database company providing a unified platform for transactional, analytical, and AI workloads.	Database	Open source · Self-hostable	Redwood City, United States	$131.0M	61
Akash NetworkDecentralized cloud marketplace for compute resources, leveraging blockchain technology (DePIN).	DePIN	Open source · Self-hostable	San Francisco, United States	$2.0M	56
Mozilla FirefoxOpen-source web browser focused on privacy, user control, and an open internet.	Internet	Open source · Self-hostable	San Francisco, United States	$2.3M	54
Visual LayerAI-powered database for visual data, enabling intelligent search and analysis of images and videos.	Database	Open source · Self-hostable	Tel Aviv, Israel	$7.0M	50
ResponsivePlatform for developers building stateful reactive applications on the modern cloud with object store native databases.	Enterprise	Open source · Self-hostable	San Francisco, United States	—	35
PyTorchAn open-source machine learning framework for accelerating AI research and production deployment.	AI	Open source · Self-hostable	San Francisco, United States	—	25
TensorFlowAn open-source machine learning platform for building and deploying AI applications.	AI	Open source · Self-hostable	Mountain View, United States	—	10
AjthinkingCode, AI, GIS, maps, open-source tooling, city planning, and marketing automation.	Open Source	Open source	—	—	7
Agentic Commerce Protocol (ACP)Open-source standard enabling secure, programmatic commerce transactions between AI agents and online businesses.	AI	Open source · Self-hostable	San Francisco, United States	—	3
Model Context Protocol (MCP)An open standard for connecting AI assistants to external data sources and tools.	AI	Open source · Self-hostable	San Francisco, United States	—	2