Where are you seeing that? I just read the definition and it doesn't seem to a allow closed components:
> An Open Source AI is an AI system made available under terms and in a way that grant the freedoms to:
> Use the system for any purpose and without having to ask for permission.
> Study how the system works and inspect its components.
> Modify the system for any purpose, including to change its output.
> Share the system for others to use with or without modifications, for any purpose.