I have a new piece up on @lawfare arguing that the First Amendment does not generally protect the distribution of machine-learning model weights. This is an important legal issue as the government considers AI export controls. https://www.lawfaremedia.org/article/there-is-no-general-first-amendment-right-to-distribute-machine-learning-model-weights
There Is No General First Amendment Right to Distribute Machine-Learning Model Weights

Unlike source code, which humans use to express ideas to each other, model weights function primarily as machine-readable instructions.

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