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OpenAI ChatGPT Outage History

Every past OpenAI ChatGPT outage tracked by IsDown, with detection times, duration, and resolution details.

There were 124 OpenAI ChatGPT outages since October 2025. The 124 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Minor May 27, 2026

May 2026: Codex Context Compaction Latency

Detected May 27, 2026 1:59 PM EDT · Resolved May 28, 2026 3:01 AM EDT · Duration about 13 hours

OpenAI experienced a 13-hour incident where Codex context compaction was slower than expected, affecting both Codex and ChatGPT services. The issue was traced to a configuration error that caused performance degradation in Codex operations. The problem was resolved by applying a mitigation fix and monitoring the recovery.

Minor May 27, 2026

May 2026: Android ChatGPT Business users having trouble switching workspaces

Detected May 27, 2026 12:28 PM EDT · Resolved May 28, 2026 12:01 AM EDT · Duration about 12 hours

Android ChatGPT business users experienced issues switching between workspaces, affecting login functionality and general ChatGPT access. The incident was classified as minor and lasted 11.6 hours while OpenAI investigated the problem. The service disruption specifically impacted the workspace switching feature for business users on the Android platform.

Minor May 26, 2026

May 2026: Users unable to access chat support on help center

Detected May 26, 2026 4:30 PM EDT · Resolved May 26, 2026 4:33 PM EDT · Duration 4 minutes

Users experienced errors when attempting to access chat support through OpenAI's help center, affecting both login functionality and ChatGPT services. The incident was identified and a mitigation was implemented to resolve the access issues. The service disruption lasted 4 minutes with users temporarily directed to email support as an alternative.

Minor May 26, 2026

May 2026: Login issues for FedRAMP users who recently logged out

Detected May 26, 2026 1:05 PM EDT · Resolved May 27, 2026 12:19 PM EDT · Duration about 23 hours

OpenAI ChatGPT experienced login issues specifically affecting FedRAMP users who had recently logged out, preventing them from accessing the service. The incident lasted 23.2 hours before a mitigation was applied and the system returned to normal operation. Both ChatGPT and the login system were impacted during this period.

Minor May 22, 2026

May 2026: Increase in users hitting Codex rate limits

Detected May 22, 2026 12:40 PM EDT · Resolved May 23, 2026 6:59 AM EDT · Duration about 18 hours

OpenAI experienced an 18.3-hour incident where users encountered increased rate limiting issues with Codex and ChatGPT services. The company investigated the problem and applied mitigation measures to resolve the rate limiting issues. The incident was classified as minor and has been resolved with ongoing monitoring of the recovery.

Minor May 21, 2026

May 2026: Elevated latency and error rates for ChatGPT 5.5 Thinking

Detected May 21, 2026 6:06 PM EDT · Resolved May 21, 2026 7:26 PM EDT · Duration about 1 hour

ChatGPT 5.5 Thinking experienced elevated latency and error rates affecting both web and ChatGPT components for 1.3 hours. OpenAI identified the issue, implemented a mitigation, and monitored the recovery until service was restored.

Minor May 21, 2026

May 2026: Elevated error rates on ChatGPT paid plans

Detected May 21, 2026 9:53 AM EDT · Resolved May 21, 2026 5:54 PM EDT · Duration about 8 hours

OpenAI ChatGPT experienced elevated error rates affecting paid plan users for 1.5 hours, preventing messages from loading and generating responses with "error in message stream" notifications. Users reported being unable to get responses to their prompts despite being able to type messages, with the service consistently returning error messages instead of functioning normally. The issue was mitigated and the service returned to normal operation after monitoring confirmed recovery.

Major May 13, 2026

May 2026: Issues accessing ChatGPT for logged-out users

Detected May 13, 2026 7:08 PM EDT · Resolved May 13, 2026 7:31 PM EDT · Duration 24 minutes

OpenAI ChatGPT experienced a major outage affecting logged-out users' ability to access the service, with login functionality also impacted for 24 minutes. Users reported content failing to load and unresponsive "Try again" buttons when attempting to use the service. The issue was resolved through applied mitigation measures and the service was restored to normal operation.

Minor May 13, 2026

May 2026: Codex 5.5 engines are experiencing high error rate

Detected May 13, 2026 4:22 AM EDT · Resolved May 13, 2026 6:22 AM EDT · Duration about 2 hours

OpenAI's Codex 5.5 engines experienced elevated error rates affecting both ChatGPT and Codex services, with free users encountering high error rates and all Codex users experiencing degraded latency. The incident lasted 2 hours, during which the team identified the issue as specifically impacting gpt-5.5 performance. A mitigation was successfully applied and the service recovery was being monitored.

Minor May 10, 2026

May 2026: Users may experience elevated errors in ChatGPT uploading files and Codex Cloud creating tasks

Detected May 10, 2026 9:26 PM EDT · Resolved May 11, 2026 1:39 AM EDT · Duration about 4 hours

OpenAI ChatGPT experienced elevated errors affecting file uploads and Codex Cloud task creation for 4.2 hours. Users encountered difficulties uploading files to ChatGPT and creating tasks in Codex Cloud during this period. The issue was resolved after OpenAI applied a mitigation and monitored the recovery.