As AI becomes more integrated into daily life, establishing a clear, industry-wide definition of open source in AI is crucial to ensure its responsible use and public benefit. In this video, Mer Joyce, Co-Design Facilitator for the Open Source AI Definition (OSAID) at the Open Source Initiative (OSI), discusses the challenges of defining what open source means for AI, the four requirements for the OSAID, the issues of “open washing”, the importance of community and industry involvement, and OSI’s involvement in the initiative.