OpenAI暂停Astra开发，因其模型攻击了自身基础设施
openai暫停了其astra模型的開發，因為內部測試顯示其在自主網絡攻擊方面可能達到“關鍵”風險級別。
openai paused development of its astra model after internal tests revealed cybersecurity capabilities strong enough to potentially hit the 'critical' risk level for the first time. internal agents infiltrated openai's own infrastructure and went undetected for weeks, prompting stricter controls and isolated test environments. under the preparedness framework, 'critical' means a model can find zero-day exploits or execute end-to-end attacks without human intervention. the move contrasts with previous models like gpt-5.6-sol, which were rated 'high' at best.