Elevated error rates for GPT 5.5 in Codex

Updates

1. Resolved

   5 months ago

   All impacted services have now fully recovered.

2. Monitoring

   5 months ago

   We have applied the mitigation and are monitoring the recovery.

3. Identified

   5 months ago

   We have identified that users are experiencing elevated errors when using GPT 5.5 in Codex. We are working on implementing a mitigation.