The Linux Foundation Member Summit 2025

As AI innovation accelerates, the definition of "openness" in AI models becomes critical for fostering collaboration, transparency, and trust. The Model Openness Framework (MOF) provides a clear and actionable classification for AI models based on their openness:
• Class III: Open Models
• Class II: Open Tooling Models
• Class I: Open Science Models
In this talk, we will introduce MOF and showcase exemplary AI models that qualify for each class, highlighting how they align with MOF criteria. We will explore real-world use cases of these models demonstrating how openness drives tangible value, innovation, and collaboration.