Forrester’s Open-Source AI Model Openness Framework (MOF) empowers technology leaders to confidently select the best open-source AI models. Crucial is the MOF’s recognition that “openness” exists on a spectrum, not as an absolute. By understanding and assessing the degree of openness across various dimensions, technology leaders can make informed decisions aligned with their organization’s specific needs and risk tolerance. The MOF examines the three key dimensions of this spectrum: reproducibility, usage, and community.