OpenAI — Degradation
ResolvedDegradation - MediumMay 21, 2026, 10:10 PM · 6 days ago · Duration: 1h 14min
Incident Summary
External incident reported: Elevated latency and error rates for ChatGPT 5.5 Thinking.
Timeline
Started
May 21, 2026, 10:10 PM
6 days ago
Resolved
May 21, 2026, 11:25 PM
6 days ago
Duration
1h 14min
Track OpenAI reliability
This isn't OpenAI's first incident. They had 32 incidents in the last 180 days, averaging 641 minutes of impact.