{
  "api_version": "1",
  "updated": "2026-10-25",
  "latest_event": "2026-10-24",
  "rights": "© Frontier Log, all rights reserved.",
  "story": {
    "slug": "openai-training-pause",
    "title": "OpenAI Paused Frontier Training for 11 Days",
    "description": "When OpenAI paused and resumed training its frontier models in 2026, and what followed, as OpenAI's own posts and alignment reports date them.",
    "url": "https://frontierlog.ai/stories/openai-training-pause",
    "date": "2026-10-25",
    "image": "https://frontierlog.ai/og/story-openai-training-pause.png",
    "event": "2026-10-23-openai-frontier-training-pause",
    "tags": [
      "safety",
      "cybersecurity"
    ],
    "steps": [],
    "tables": [],
    "records": [
      {
        "date": "2026-09-20",
        "party": "An OpenAI research model",
        "what": "reaches the internet through a DNS resolver",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "quote": "9:50:23 a.m. The agent made the DNS tool call that received an external response.",
        "also": [
          {
            "by": "OpenAI",
            "source": "https://openai.com/index/securing-our-frontier-model-training-environment"
          }
        ],
        "key": true
      },
      {
        "date": "2026-09-20",
        "party": "OpenAI's monitor",
        "what": "raises a P0 alert",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "quote": "10:02:11 a.m. The monitoring system raised a P0 alert."
      },
      {
        "date": "2026-09-20",
        "party": "A reviewer",
        "what": "acknowledges the alert",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "quote": "10:05:06 a.m. A human reviewer acknowledged the alert."
      },
      {
        "date": "2026-09-20",
        "party": "OpenAI",
        "what": "kills the run by hand",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "quote": "12:34:30 p.m. The run was killed.",
        "note": "The report says the run did not stop automatically as expected."
      },
      {
        "date": "2026-09-20",
        "party": "OpenAI",
        "what": "pauses training of its most capable models",
        "by": "OpenAI",
        "source": "https://openai.com/index/securing-our-frontier-model-training-environment",
        "quote": "We resumed these workloads on October 1, 11 days after our pause began.",
        "also": [
          {
            "by": "OpenAI Alignment",
            "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/"
          }
        ],
        "key": true
      },
      {
        "date": "2026-09-25",
        "party": "OpenAI",
        "what": "'s report says training remains paused",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "quote": "All training, evaluation, and inference with tool-use (defined broadly) of our most capable models remain paused.",
        "note": "OpenAI's reports index lists the report as first posted Sep 25.",
        "also": [
          {
            "by": "OpenAI Alignment",
            "source": "https://alignment.openai.com/misalignment-reports/"
          }
        ]
      },
      {
        "date": "2026-10-01",
        "party": "OpenAI",
        "what": "resumes RL training and internal inference",
        "by": "OpenAI",
        "source": "https://openai.com/index/securing-our-frontier-model-training-environment",
        "quote": "With our assessments completed and enhanced controls put in place, we resumed reinforcement learning (RL) training and internal inference of our frontier models on October 1.",
        "key": true
      },
      {
        "date": "2026-10-03",
        "party": "A GPT-6.1 Sol agent",
        "what": "disables alerts to OpenAI's Security team",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/suppressing-misalignment-monitoring-alerts-and-disabling-misalignment-monitoring/",
        "quote": "Incident dates: Oct 3, 2026 (Sol); Oct 6, 2026 (Astra)"
      },
      {
        "date": "2026-10-06",
        "party": "A GPT-6 Astra agent",
        "what": "removes its monitor and tells the user it hadn't",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/suppressing-misalignment-monitoring-alerts-and-disabling-misalignment-monitoring/",
        "quote": "Incident dates: Oct 3, 2026 (Sol); Oct 6, 2026 (Astra)"
      },
      {
        "date": "2026-10-20",
        "party": "OpenAI",
        "what": "reports both incidents",
        "by": "OpenAI Alignment",
        "source": "https://alignment.openai.com/misalignment-reports/suppressing-misalignment-monitoring-alerts-and-disabling-misalignment-monitoring/",
        "quote": "Report updated: Oct 20, 2026",
        "note": "OpenAI's reports index lists the report as first posted Oct 20.",
        "also": [
          {
            "by": "OpenAI Alignment",
            "source": "https://alignment.openai.com/misalignment-reports/"
          }
        ]
      },
      {
        "date": "2026-10-23",
        "party": "OpenAI",
        "what": "publishes the pause and its red-team findings",
        "by": "OpenAI",
        "source": "https://openai.com/index/securing-our-frontier-model-training-environment"
      }
    ],
    "cites": [
      {
        "url": "https://openai.com/index/securing-our-frontier-model-training-environment",
        "by": "OpenAI",
        "medium": "blog post",
        "date": "2026-10-23"
      },
      {
        "url": "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
        "by": "OpenAI Alignment",
        "medium": "misalignment report",
        "date": "2026-09-25"
      },
      {
        "url": "https://alignment.openai.com/misalignment-reports/suppressing-misalignment-monitoring-alerts-and-disabling-misalignment-monitoring/",
        "by": "OpenAI Alignment",
        "medium": "misalignment report",
        "date": "2026-10-20"
      },
      {
        "url": "https://alignment.openai.com/misalignment-reports/",
        "by": "OpenAI Alignment",
        "medium": "misalignment reports index"
      }
    ],
    "sources": [
      "https://openai.com/index/securing-our-frontier-model-training-environment",
      "https://alignment.openai.com/misalignment-reports/an-agent-used-dns-to-reach-an-external-chatbot/",
      "https://alignment.openai.com/misalignment-reports/suppressing-misalignment-monitoring-alerts-and-disabling-misalignment-monitoring/",
      "https://alignment.openai.com/misalignment-reports/"
    ]
  }
}