Serval incident

Elevated errors across ChatGPT, Codex, and the API including the Agents API

Minor Resolved

Serval experienced a minor incident on September 29, 2026 affecting Third Party: OpenAI (Third Party: OpenAI → APIs → Chat Completions) and Third Party: OpenAI (Third Party: OpenAI → APIs → Responses), lasting 5h 21m. The incident has been resolved; the full update timeline is below.

Started
Sep 29, 2026, 05:52 PM UTC
Resolved
Sep 29, 2026, 11:14 PM UTC
Duration
5h 21m
Detected by Pingoru
Sep 29, 2026, 05:52 PM UTC

Affected components

Third Party: OpenAI (Third Party: OpenAI → APIs → Chat Completions)Third Party: OpenAI (Third Party: OpenAI → APIs → Responses)

Update timeline

  1. investigating Sep 29, 2026, 05:52 PM UTC

    We’re investigating elevated errors affecting ChatGPT, Codex, and the 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.

  2. investigating Sep 29, 2026, 06:24 PM UTC

    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.

  3. investigating Sep 29, 2026, 07:08 PM UTC

    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.

  4. monitoring Sep 29, 2026, 07:39 PM UTC

    We have applied the mitigation and are monitoring the recovery.

  5. monitoring Sep 29, 2026, 09:09 PM UTC

    We have applied the mitigation and are monitoring the recovery.

  6. monitoring Sep 29, 2026, 10:03 PM UTC

    We have applied the mitigation and are monitoring the recovery.

  7. monitoring Sep 29, 2026, 10:47 PM UTC

    We have applied the mitigation and are monitoring the recovery.

  8. resolved Sep 29, 2026, 11:14 PM UTC

    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.