Nathan Lambert: the open-weights cyber weapon scare hasn't materialized—GLM-5.3 proves the point

natolambert · x · 2026-10-31

Nathan Lambert responds to critics of his open-models-and-cyber-risk take, arguing the AI community is asking the wrong question—not which model type causes harm, but how cybersecurity maintains equilibrium and who wields new tools.

Key points: recent mass vulnerability disclosures (PHP2Shell, GitLab) got dubbed "Black October," signaling AI-enabled cyber risk materializing; open-weight Claude was previewed in April as a potential cyber weapon that could destabilize society—by his measures that prediction failed; GLM-5.3, the model actually crossing the capability threshold, has been out over a month with little evidence of changed harm; WSJ reports cyber first responders are strained, which he reads as the system working through an exponential vulnerability curve that will take a long time to level off.

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