Codex 5.5 engines are experiencing high error rate

Resolved

Started

Lasted 2h 2m

View official incident ↗

Updates

  1. Resolved

    All impacted services have now fully recovered.

  2. Monitoring

    We have applied the mitigation and are monitoring the recovery.

  3. Identified

    High error rate on codex gpt 5.5 for free users. Degraded latency on gpt 5.5 for all codex users.

  4. Investigating

    We are currently experiencing elevated error rates for gpt-5.5.