The OSI hosted the State of the Source Track at ATO. Pamela Chestek, emeritus OSI Board member, opened the track with Licensing 201, an advanced but practical look at how licenses get approved and why the right choice matters for community health.| Open Source Initiative
Members Newsletter – November 2025 October was punctuated by lots of direct connections with the community. In this month’s newsletter, we’ll highlight our experience through our annual “State of the Source” track at All Things Open; discuss our advocacy on behalf of the Open Source community through our public policy work; and share the recorded sessions from outstanding contributors to the Deep Dive: Data Governance virtual event.| Open Source Initiative
As the deadline for the application of the CRA draws closer, the OSI is happy to announce the beginning of an Open consultation on many of the vertical standards.| Open Source Initiative
The OSI hosted the State of the Source Track at ATO. Gabriel Toscano from Duke University led the State of the “Open” AI session, unpacking what it really means when models call themselves open.| Open Source Initiative
The OSI hosted the State of the Source Track at ATO. Katie Steen-James and Nick Vidal participated in a fireside chat (Policy: AI / Data Governance) to discuss the latest AI and data governance policy developments.| Open Source Initiative
The OSI hosted the State of the Source Track at ATO. Katie Steen-James, Jeremy Stanley, Barry Peddycord III, and Bob Callaway led the panel Policy Cybersecurity, with updates on SBOMs, the Cyber Resilience Act, and what developers need to know.| Open Source Initiative
The OSI hosted the State of the Source Track at ATO. Ruth Suehle, Patrick Masson, Amir Montazery, and Duane O’Brien organized the panel Beyond the Bottom Line: Sustaining the Open Source Ecosystem, exploring real-world approaches to Sustaining Open Source, from new funding models to global procurement policies.| Open Source Initiative
Members Newsletter – October 2025 Welcome to our OSI October newsletter. In this edition we’ll share how we spent our September and highlight our upcoming October activities. As always, if you’re interested in more information about anything we’re working on, just drop us a note.| Open Source Initiative
As the full-time Senior U.S. Policy Manager, my role at OSI is to educate policymakers about the benefits of Open Source software, track policy developments at the state and federal level, and ultimately, ensure that Open Source developers can continue doing their work.| Open Source Initiative
The Open Source Initiative is seeking its next Executive Director (ED), the chief executive and strategic leader of the OSI, responsible for advancing its mission, growing and diversifying its funding base, and fostering a global, inclusive community of stakeholders. The ED will be a visible ambassador for OSI to build consensus around key initiatives, including the next version of the Open Source Al definition.| Open Source Initiative
The Open Source Initiative (OSI) is once again partnering with Perforce OpenLogic & Zend, in collaboration with the Eclipse Foundation, for the 2026 State of Open Source Survey, the industry’s most comprehensive study of global Open Source adoption trends.| Open Source Initiative
Members Newsletter – May 2025 May is Maintainer Month—a time to recognize the essential work of those who build, fix, review, and secure the code that the world relies on every day. At OSI, we know maintainers are the heartbeat of Open Source. That’s why we’re lifting up their stories, sharing ways to get involved, and making space to say thank you. If you know a maintainer, take a moment this month to let them know their work matters.| Open Source Initiative
Maintainer Month returns this May, and the Open Source Initiative (OSI) is proud to join GitHub and a global community of contributors in honoring the individuals who steward and sustain Open Source projects. In 2025, Maintainer Month enters its fourth year with a clear and urgent theme: Securing Open Source.| Open Source Initiative
We're excited to highlight the Certified Open Source Developer for Enterprise (CODE) certification, led by the TODO Group and Linux Foundation Training & Certification, with the Open Source Initiative (OSI) contributing as a supporting partner.| Open Source Initiative
The OSI is joining forces with fellow content partners Open Knowledge Foundation (OKF) and the Digital Public Goods Alliance (DPGA) to support OpenForum Academy (OFA) Symposium 2025, taking place November 18–19 at the FGV Law School in Rio de Janeiro, Brazil.| Open Source Initiative
Each year, the State of Open Source Report offers a valuable pulse check on the global Open Source ecosystem—and the 2025 edition is no exception. Produced by Perforce OpenLogic, in partnership with the Eclipse Foundation and the Open Source Initiative, this report uncovers the latest trends, tensions, and transformations shaping how Open Source is adopted, managed, and scaled in organizations of all sizes.| Open Source Initiative
The Cyber Resilience Act (CRA) is a proposal for a European law that aims to drive the safety and integrity of software of all kinds by extending the “CE” self-attestation mark to software. And it may harm Open Source.| Open Source Initiative
Supporting maintainers and protecting the Open Source ecosystem How the OSI supports maintainers OSI Approved Licenses We provide a venue for the community to discuss Open Source licenses and we…| Open Source Initiative
The OSI has endorsed a proposal from Open Forum Europe to create an EU Sovereign Tech Fund to support maintenance and development of key Open Source software projects.| Open Source Initiative
Endorser organizations These organizations endorse the Open Source AI Definition. Add your name to the list. Statements of support Add your name to the list. Add your name to the…| Open Source Initiative
This checklist is based on the paper The Model Openness Framework: Promoting Completeness and Openness for Reproducibility, Transparency and Usability in AI – DOI published Mar 21, 2024. The Model…| Open Source Initiative
At this year’s Open Source Summit EU (OSS EU 2025) and AI_dev EU 2025, Stefano Maffulli, Executive Director of OSI, and Jordan Maris, OSI’s EU Policy Analyst, presented a summary of 10 months since the release of the Open Source AI Definition v1.0.| Open Source Initiative
Answers to Frequently Asked Questions The Open Source AI Definition (OSAID) represents an important first step in defining Open Source in an AI context. Because AI systems differ fundamentally from…| Open Source Initiative
KubeCon China 2024 was a whirlwind of innovation, community and technical deep dives. As it often happens at these community events, I was blown away by the energy, enthusiasm and sheer amount of knowledge being shared.| Open Source Initiative
The Open Source Initiative (OSI) is running a series of stories about a few of the people involved in the Open Source AI Definition (OSAID) co-design process. Today, we are featuring Rahmat Akintola, one of the volunteers who has helped to shape and are shaping the OSAID.| Open Source Initiative
The Digital Public Goods Alliance (DPGA) Annual Members Meeting was an inspiring gathering of innovators, developers and advocates working to create a thriving ecosystem for Digital Public Goods (DPGs).| Open Source Initiative
The Open Source Initiative (OSI) proudly participated in the Open Source Congress 2024, held from August 25-27 in Beijing, China. This event was a gathering for key individuals in the Open Source nonprofit community, aiming to foster collaboration, innovation, and strategic development within the ecosystem. Here are some highlights from OSI’s participation at the event.| Open Source Initiative
The Open Source Initiative (OSI) is running a series of stories about a few of the people involved in the Open Source AI Definition (OSAID) co-design process. Today, we are featuring Tarunima Prabhakar, one of the volunteers who has helped to shape and are shaping the OSAID.| Open Source Initiative
At the 10th anniversary of Nerdearla, one of the largest Open Source conferences in Latin America, Mer Joyce, Co-Design Facilitator of the Open Source AI Definition (OSAID), delivered a key presentation titled "Defining Open Source AI".| Open Source Initiative
The Open Source Initiative in collaboration with GitHub and SAP presented ClearlyDefined at SOSS Fusion.| Open Source Initiative
A few weeks ago I attended Open Source Summit Europe 2024, an event organized by the Linux Foundation, that brought together brilliant developers, technologists and leaders from all over the world, reinforcing what Open Source is truly about—collaboration, innovation and community.| Open Source Initiative
Growing the impact of Open Source around the world The Open Source Initiative is the global nonprofit building the future powered by open collaboration, transparency and innovation. Supported by the…| Open Source Initiative
In addition to joining a number of other organizations in responding to the NTIA’s Request for Comment on, OSI has provided its organizational response to the call for public comment, centering its encouragement on the societal benefits of open models and emphasizing the need to complete the development of a recognized definition of the concept of “Open Source AI” as fundamental to effective policy-making regarding Artificial Intelligence.| Open Source Initiative
The OSI explains the areas of the “AI Action Plan” that may impact the Open Source community, in particular a specific section titled: “Encourage Open Source and Open Weight-AI.”, and highlights recommendations to watch as the administration moves forward with implementation.| Open Source Initiative
version 1.0 Preamble Why we need Open Source Artificial Intelligence (AI) Open Source has demonstrated that massive benefits accrue to everyone after removing the barriers to learning, using, sharing and…| Open Source Initiative
Keeping Europe safe and advancing Open Source: OSI provides feedback to the EU Cybersecurity Act| Open Source Initiative
What’s Open Source AI? Following the same idea behind Open Source Software,an Open Source AI is a system made available under terms that grant users the freedoms to: Benefits of Open Source AI…| Open Source Initiative
Deep Dive: Data Governance brings world-class experts together| Open Source Initiative
Members Newsletter – June 2025 May was a full immersion into some of the largest components of the Open Source ecosystem, from maintainers to founders.| Open Source Initiative
The Open Forum for AI (OFAI) and OSI submitted feedback to the White House in response to its request for information on the development of a 2025 National AI R&D Strategic Plan.| Open Source Initiative
The OSI is proud to stand with the “End of 10” campaign—a community-driven effort to turn the looming end of Windows 10 support into an opportunity for freedom, sustainability, and digital empowerment.| Open Source Initiative
My first big open source project was urllib3. Today it’s used by almost every Python user and receives about a billion downloads each month, but it started in 2007 out of necessity.| Open Source Initiative
OSI Approved Licenses Open source licenses are licenses that comply with the Open Source Definition – in brief, they allow software to be freely used, modified, and shared. To be…| Open Source Initiative
Building digital public goods: Reflections from UN Open Source Week 2025| Open Source Initiative
White House releases AI Action Plan, includes Open Source| Open Source Initiative
Open Source Founders Summit (#05F525), held May 19–20 in Paris, brought together a vibrant community of Open Source entrepreneurs, builders, and advocates for two days of deep, engaging conversations about what it takes to create sustainable, successful Open Source companies.| Open Source Initiative
Case study: enhancing SBOMs with cdsbom at the Linux Foundation| Open Source Initiative
OSI at the Open Source Founders Summit: supporting entrepreneurs to build a business with Open Source| Open Source Initiative
For AI to be truly Open Source, it must uphold the same principles that have defined Open Source software for over two decades. There is no “80% open” or “open enough.” The freedom to use, study, modify, and share isn’t negotiable. It’s either there, or it isn’t.| Open Source Initiative
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. The OSI applied to take part in the drafting of these rules, but when the first draft arrived, we discovered issues that would make it impossible for Open Source AI projects to comply. Here’s how we fixed them.| Open Source Initiative
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.| Open Source Initiative
Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU…| Open Source Initiative
Note: This license has also been called the “New BSD License” or “Modified BSD License”. See also the 2-clause BSD License. Copyright Redistribution and use in source…| Open Source Initiative
Copyright Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the…| Open Source Initiative
The Open Source AI Definition v0.0.9 has been released and collaboration continues at in-person events and in the online forums. Read what changes have been made, what to do next and how to get involved.| Open Source Initiative
Introduction Open source doesn’t just mean access to the source code. The distribution terms of open source software must comply with the following criteria: 1. Free Redistribution The license shall…| Open Source Initiative
