OpenAI outage reaches a 35% ChatGPT error rate
A routine operating-system update disconnected numerous GPU nodes from the network. ChatGPT errors reached roughly 35%, while API errors reached roughly 25%.
- First observed
- Jun 10, 2026, 8:36:00 AM
- Disclosed
- Jun 10, 2026, 8:36:00 AM
- Status
- Resolved
- Confidence
- 99%
- Organization
- OpenAI
- Last reviewed
- Sep 1, 2026
Observed
Facts supported by sources
- ChatGPT errors peaked at approximately 35%, while API errors peaked at approximately 25%.
- According to the postmortem, API availability fell to 75%.
- The UTC times were converted from PDT.
Assessment
Interpretation, not observation
No additional interpretation recorded.
Impact
Impact
Broad global outage with a high error rate; full recovery took approximately 15 hours and 24 minutes.
Response
Response
OpenAI reimaged GPU nodes, stopped automatic updates, and added configuration audits and disaster-recovery exercises.