Outage in OpenAI
GPT5.5 Performance Degradation
Resolved Minor
May 15, 2026 - Started 2 months ago
- Lasted 1 day
Incident Report
Summary AI Generated
OpenAI experienced performance degradation issues with GPT 5.5 that affected some users for 32.1 hours. The service team investigated reports of worse performance and applied a mitigation to resolve the issue. The incident was classified as minor and the team monitored the recovery after implementing the fix.
We are investigating the issue for reports of GPT 5.5 performing worse for some users.
Trusted by 1,000+ teams
The Status Page Aggregator with Early Outage Detection
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
MONITORING
2 months ago - at 05/16/2026 12:35AM
We have applied the mitigation and are monitoring the recovery.
INVESTIGATING
2 months ago - at 05/15/2026 04:11PM
We are investigating the issue for reports of GPT 5.5 performing worse for some users.
Latest OpenAI outages
Some users are unable to access Codex - 1 day ago
Elevated errors for Github connector - 2 days ago
Elevated Error Rates For SSO Login - 3 days ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
