AI outage calendar – OpenAI / ChatGPT

Every incident published on official AI status pages, archived permanently — even after vendors remove them. Pick a month, click a day to see what broke.

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September 2026

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This month

32 official incidents this month · 4 days with major outages · times in UTC

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Major / criticalMinorOther / maintenanceSeen by our probesClick a day to see its incidents

Wed, Sep 30 3↑ Calendar

Elevated latency for some API requests

OpenAI / ChatGPT · Details · 17:05–20:35 · impact: minor · lasted 3.5 h

Elevated error rates for ChatGPT Pro and Plus users

OpenAI / ChatGPT · Details · 05:47–13:23 · impact: minor · lasted 7.6 h

Elevated errors in ChatGPT Space Pages

OpenAI / ChatGPT · Details · 02:20–10-01 23:44 · impact: minor · lasted 1.9 d

Tue, Sep 29 2↑ Calendar

Elevated errors across ChatGPT, Codex, and the API including the Agents API

OpenAI / ChatGPT · Details · 17:52–23:14 · impact: minor · lasted 5.4 h

Support available via email

OpenAI / ChatGPT · Details · 17:49–23:18 · impact: none · lasted 5.5 h

Fri, Sep 25 1↑ Calendar

Issues with Codex

OpenAI / ChatGPT · Details · 22:58–23:54 · impact: critical · lasted 56 min

Thu, Sep 24 1↑ Calendar

Elevated Error Rates on GPT-6 Astra Pro

OpenAI / ChatGPT · Details · 18:59–19:46 · impact: none · lasted 47 min

Wed, Sep 23 2↑ Calendar

Mobile users unable to see Work Mode and the Model Picker

OpenAI / ChatGPT · Details · 23:25–23:49 · impact: minor · lasted 24 min

Elevated Error Rates for ChatGPT across Plus and Pro plans.

OpenAI / ChatGPT · Details · 09:13–09:54 · impact: minor · lasted 41 min

Tue, Sep 22 2↑ Calendar

Elevated Error Rates for ChatGPT Work, across Plus, Pro, Business, Enterprise and Education plans.

OpenAI / ChatGPT · Details · 15:04–15:58 · impact: minor · lasted 54 min

Increased error rate for Plus and Pro users.

OpenAI / ChatGPT · Details · 09:58–10:37 · impact: minor · lasted 39 min

Sat, Sep 19 2↑ Calendar

Overbilling for OpenAI-hosted containers in the Agent API

OpenAI / ChatGPT · Details · 09-18 22:29–07:52 · impact: none · lasted 9.4 h

Delayed support responses

OpenAI / ChatGPT · Details · 09-18 21:36–01:10 · impact: none · lasted 3.6 h

Fri, Sep 18 3↑ Calendar

SSO sign-in and SCIM provisioning issues

OpenAI / ChatGPT · Details · 23:00–23:18 · impact: none · lasted 19 min

Overbilling for OpenAI-hosted containers in the Agent API

OpenAI / ChatGPT · Details · 22:29–09-19 07:52 · impact: none · lasted 9.4 h

Delayed support responses

OpenAI / ChatGPT · Details · 21:36–09-19 01:10 · impact: none · lasted 3.6 h

Thu, Sep 17 2↑ Calendar

We are seeing elevated error rates across API models

OpenAI / ChatGPT · Details · 21:29–21:50 · impact: minor · lasted 21 min

Elevated errors affecting ChatGPT Work mode

OpenAI / ChatGPT · Details · 19:03–20:24 · impact: major · lasted 1.4 h

Wed, Sep 16 2↑ Calendar

Elevated errors in ChatGPT Work

OpenAI / ChatGPT · Details · 18:44–19:34 · impact: minor · lasted 50 min

Elevated errors with gpt-image-2.5-flare

OpenAI / ChatGPT · Details · 09-15 23:50–00:30 · impact: major · lasted 40 min

Tue, Sep 15 4↑ Calendar

Elevated errors with gpt-image-2.5-flare

OpenAI / ChatGPT · Details · 23:50–09-16 00:30 · impact: major · lasted 40 min

Ads Manager login issues

OpenAI / ChatGPT · Details · 16:52–16:54 · impact: minor · lasted 1 min

Elevated errors from GPT-5.6 and GPT-5.6 Instant on paid plans

OpenAI / ChatGPT · Details · 07:12–07:53 · impact: minor · lasted 42 min

Elevated errors affecting Work Mode in ChatGPT

OpenAI / ChatGPT · Details · 09-14 15:58–03:11 · impact: minor · lasted 11.2 h

Mon, Sep 14 3↑ Calendar

Degraded Performance affecting Agents API

OpenAI / ChatGPT · Details · 23:20–23:39 · impact: none · lasted 19 min

Elevated errors affecting Work Mode in ChatGPT

OpenAI / ChatGPT · Details · 15:58–09-15 03:11 · impact: minor · lasted 11.2 h

Elevated error rates for Codex and ChatGPT Work

OpenAI / ChatGPT · Details · 02:46–03:57 · impact: none · lasted 1.2 h

Sun, Sep 13 2↑ Calendar

Elevated errors for ChatGPT users in Europe

OpenAI / ChatGPT · Details · 16:56–17:47 · impact: minor · lasted 51 min

Codex GitHub Review and Pull Request Failures

OpenAI / ChatGPT · Details · 09:26–09:53 · impact: minor · lasted 28 min

Sat, Sep 12 1↑ Calendar

1% of ChatGPT Work (mobile/web) turns are failing for existing threads

OpenAI / ChatGPT · Details · 09-11 16:22–01:57 · impact: minor · lasted 9.6 h

Fri, Sep 11 3↑ Calendar

1% of ChatGPT Work (mobile/web) turns are failing for existing threads

OpenAI / ChatGPT · Details · 16:22–09-12 01:57 · impact: minor · lasted 9.6 h

Elevated errors for GPT-5.6 Sol on the API

OpenAI / ChatGPT · Details · 09:08–11:21 · impact: minor · lasted 2.2 h

Elevated errors for ChatGPT users in Europe

OpenAI / ChatGPT · Details · 07:53–10:16 · impact: minor · lasted 2.4 h

Thu, Sep 10 3↑ Calendar

Delays in customer support responses

OpenAI / ChatGPT · Details · 19:53–21:48 · impact: none · lasted 1.9 h

Elevated errors affecting ChatGPT Work

OpenAI / ChatGPT · Details · 19:49–21:30 · impact: minor · lasted 1.7 h

Unable to open shared ChatGPT Project using direct link

OpenAI / ChatGPT · Details · 02:21–14:28 · impact: minor · lasted 12.1 h

Wed, Sep 9 1↑ Calendar

Investigating unexpected usage limit resets

OpenAI / ChatGPT · Details · 17:29–17:54 · impact: none · lasted 24 min