Serval incident
Elevated errors across ChatGPT, Codex, and the API including the Agents API
Serval experienced a minor incident on September 29, 2026, lasting 5h 21m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Sep 29, 2026, 05:52 PM UTC
Status: Investigating Historical incident start recorded by the original status page. No update message was published at this timestamp.
- resolved Sep 29, 2026, 06:09 PM UTC
Status: Resolved No message was published with this source update.
- investigating Sep 29, 2026, 06:24 PM UTC
Status: Investigating We’re investigating elevated errors affecting ChatGPT, Codex, and the API including the Agents API. Some users may experience failed requests, difficulty logging in or signing up, and tasks that do not complete. We’ll share updates as we learn more. Affected components OpenAI (Degraded performance)
- investigating Sep 29, 2026, 07:08 PM UTC
Status: Investigating We’re still investigating elevated errors affecting ChatGPT, Codex, and the API including the Agents API. Some users may experience failed requests, difficulty logging in or signing up, and tasks that do not complete. We’ll share updates as we learn more.
- monitoring Sep 29, 2026, 07:39 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery.
- monitoring Sep 29, 2026, 09:09 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery.
- monitoring Sep 29, 2026, 10:03 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery.
- monitoring Sep 29, 2026, 10:47 PM UTC
Status: Monitoring We have applied the mitigation and are monitoring the recovery.
- resolved Sep 29, 2026, 11:14 PM UTC
Status: Resolved The issue causing elevated errors across ChatGPT, Codex, and the API has been resolved, and all affected services have recovered. Thank you for your patience while we worked to restore service. The detailed Root Cause Analysis (RCA) will be published in the next 5 business days.