The Open Source Alliance has introduced the Open Weight Definition (OWD) in response to ongoing disagreements over the Open Source AI Definition (OSAID) from the Open Source Initiative (OSI). The OWD aims to clarify what constitutes "open source" in AI models, especially large language models. While supporters like Amanda Brock advocate for the OWD, OSI's executive director emphasizes community-led standards. The debate highlights the complexities of defining open-source AI amidst varying interpretations and regulatory challenges.