A Lab Stops Its Own Biggest Run
OpenAI says it has paused reinforcement learning training on its latest deployment-bound models while new security and monitoring requirements catch up. On the same day, an outside group graded every frontier lab on whether its control practices are actually implemented, Anthropic disclosed three unreleased internal models, and a governor signed data center siting rules while Nvidia backed a 4.25 gigawatt build next door.
OpenAI announced a temporary pause on reinforcement learning runs for models intended for deployment — the pause is specific to that phase, not to all training.
Pacing model…
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