OpenAI experienced a minor incident on September 18, 2026, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- identified Sep 18, 2026, 11:00 PM UTC
Status: Identified Some users are unable to sign in with single sign-on (SSO). User and group provisioning through SCIM is also affected. We are working on implementing a mitigation.
- monitoring Sep 18, 2026, 11:06 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery.
- resolved Sep 18, 2026, 11:18 PM UTC
Status: Resolved All impacted services have now fully recovered.