The weights, which are part of the source, are open. Now you are arguing it not being open source because they don't provide the source for that part of the source. If you follow that reasoning you can ad infinitum claim the absence of sources since every source originates from something.
The source is the training data and the code used to turn the training data _into_ the weights. Thus GP is correct, the weights are more akin to a binary from a traditional compiler.
To me this 'source' requirement does not make sense. It is not that you bring training data and the application together and press a train button, there's much more actions involved.
Also the training data is of a massive amount.
Additionally, what about human in the loop training, do you deliver humans as part of the source?
