The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.
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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.
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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.
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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.
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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.
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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.