An exception should be recognized: open models - free of charge, with no strings attached. I think this is the best approach because: (1) Models are public, s

An exception should be recognized: open models - free of charge, with no strings attached. I think this is the best approach because: (1) Models are public, so everyone can benefit from them. (2) Such models can be trained on public data for improvements. (No complexity involved over paying for data, no copyright risks regarding data, etc) (3) Companies can sell services. (model-as-a-service, customization, apps/tools, education, etc) (4) Companies may lose competitive edges, but they can enjoy the bigger market. (I'm looking at Matlab and Mathematica. They are really good, but Python took the market eventually.) It feels like many of FOSS pros/cons can be plugged in here as-is.