Pacing model development in an era of cyber-critical capabilities

OpenAI disclosed that it paused reinforcement-learning training on its latest deployment-bound models for two weeks to harden and red-team its research environments and expand monitoring, following the OpenAI-Hugging Face incident and preliminary evidence that an upcoming model, Astra, may cross the 'Critical' cybersecurity capability threshold under its Preparedness Framework. The company kept its largest frontier RL run on hold, added sandboxed execution, restricted network/tool access, and universal Chain-of-Thought monitoring for risky or misaligned agentic actions.