OpenAI pauses frontier model RL training for two weeks to harden safety
OpenAI · x · 2026-08-19
OpenAI announced it has temporarily paused reinforcement learning (RL) training on its latest models intended for deployment for two weeks. This decision comes as the risks associated with developing and testing more capable models grow internally. During the pause, the team hardened research environments, conducted red-teaming, and expanded monitoring coverage. The largest planned frontier RL run remains on hold pending validation of safeguards through smaller-scale training and evaluations.
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