Cryptographer Matthew Green: OpenAI appears to be running another air-gapped RL training run
matthew_d_green · x · 2026-10-04
Cryptographer Matthew Green observed that OpenAI appears to be conducting another air-gapped reinforcement learning training run, citing indirect external evidence. Air-gapped training runs happen in physically isolated networks, typically for sensitive or highly confidential frontier model training. The claim is unconfirmed by OpenAI and the post offers no further detail beyond the linked material.
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