503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

OpenAI outage — August 9, 2026

Increased errors for some ChatGPT users

OpenAI’s ChatGPT was disrupted for 12h 30m on August 9, 2026. 503Radar’s sensors raised the first signal at 20:09 UTC, 11h 14m before the official status page acknowledged impact.

Key facts

DetectedAugust 9, 2026 · 20:09 UTC
Confirmed07:23 UTC · lead time 11h 14m
Resolved08:39 UTC
Duration12h 30m
ServiceChatGPT
Official recordhttps://status.openai.com

Timeline

  1. 20:09Z

    Detected · Signal

    5 crowd signals for ChatGPT on OPENAI crossed the signal threshold.
  2. 07:23Z

    Confirmed · Official

    An official OPENAI status-page notice corroborated the event — 11h 14m after detection.
  3. 08:39Z

    Resolved

    Signal volume fell back below the threshold; the event was closed.

How this was detected

1 independent evidence class for chatgpt on OPENAI. 5 crowd reports across bluesky (single platform — not corroborating), z=+1.6σ vs the cell baseline. Official notice confirms it, 11h 14m after the crowd.