OpenAI / ChatGPT
Degraded

ChatGPT outage on September 11, 2026: what happened and how long it lasted

On September 11, 2026, OpenAI / ChatGPT had degraded performance between 07:53 and 01:57 UTC, about 18.1 h in total. The vendor posted 3 incidents.

Live status

Timeline (UTC)

  1. OfficialOfficial incident posted: Elevated errors for ChatGPT users in Europe
  2. OfficialOfficial incident posted: Elevated errors for GPT-5.6 Sol on the API
  3. OfficialOfficially resolved: Elevated errors for ChatGPT users in Europe
  4. OfficialOfficially resolved: Elevated errors for GPT-5.6 Sol on the API
  5. OfficialOfficial incident posted: 1% of ChatGPT Work (mobile/web) turns are failing for existing threads
  6. OfficialOfficially resolved: 1% of ChatGPT Work (mobile/web) turns are failing for existing threads

Hourly measurements (UTC)

00:0012:0023:00
Was ChatGPT down on September 11, 2026?

On September 11, 2026, OpenAI / ChatGPT had degraded performance between 07:53 and 01:57 UTC, about 18.1 h in total. The vendor posted 3 incidents.

Is ChatGPT working now?

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