THE open source ai definition 1.0
We have released the first stable version of the Definition.
About the Open Source Initiative
The OSI is the authority that defines Open Source, recognized globally by individuals, companies, and by public institutions.
The leading voice on the policies and principles of open source
Protecting the Open Source ecosystem
We support institutions and individuals working together to create communities of practice in which the healthy open source ecosystem thrives.
From the blog
Ensuring Open Source AI thrives under the EU’s new AI rules
In 2024, the European Union approved the Artificial Intelligence Act, the world's first legal framework for AI. Part of the law mandated the creation of a Code of Practice for General Purpose AI for AI developers. …
Announcing the new directors of OSI board
The Open Source Initiative (OSI) board of directors validated the results of the polls, confirmed Carlo Piana as director and welcomed Ruth Suele, recommended by Affiliates, and McCoy Smith recommended by Individual supporters, as new directors.
OSI and Apereo Foundation Respond to White House on AI Action Plan
The OSI submitted public comments with the Apereo Foundation in response to the White House Office of Science & Technology Policy’s (OSTP) request for information (RFI) on an AI Action Plan. Our comment outlines the benefits …
Your support, our focus: The OSI’s 2025 roadmap to a stronger Open Source ecosystem
The Open Source Initiative (OSI) has released its strategic roadmap for 2025, outlining critical initiatives designed to reinforce its role as a central authority in the Open Source ecosystem.
Support Open Source
As a public charity organization, OSI is supported by donations of corporations and individuals. Thanks to our sponsors that support our vision to be the leading voice on policies and principles of Open Source.
Upcoming Open Source Events
April 2025
The Free Software Legal and Licensing Workshop
Since 2008, the FSFE Free Software Legal and Licensing Workshop (LLW) has been the world's premier event for debating, discussing, and sharing knowledge about Free [...]
FOSS North
foss-north is a free / open source conference covering both software and hardware from the technical perspective. We provide a meeting place for the Nordic foss communities and will bring together great speakers with great audiences. Please visit our events to learn more about what we are doing!
May 2025
OpenExpo Europe
For 12 years, OpenExpo Europe has established itself as a benchmark in disseminating Technological Innovation, Digital Transformation, Open Source, and a cross-cutting focus on Artificial Intelligence and Generative AI.
OpenExpo Europe goes beyond being a mere annual event, trade show, and congress. With over 4,500 technology professionals gathered in past editions, we stand out as a melting pot of decision-makers, technicians, experts, and users passionate about cutting-edge technology trends.
Open Source Founders Summit
The conference about building financially successful and sustainable open source companies.
June 2025
Open Source Summit NA
Open Source Summit is the premier event for open source developers, technologists, and community leaders to collaborate, share information, solve problems, and gain knowledge, furthering [...]
OpenSource.net is a resource for the community
The news site a not-for-profit platform for sharing knowledge, perspectives and advocacy to support a healthy open ecosystem.