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Degraded PerformanceResolvedOfficial report

ChatGPT Degraded Performance - September 29, 2026

Provider incident title: “Elevated errors across ChatGPT, Codex, and the API including the Agents API”

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Started

Tuesday, September 29, 2026

05:52 PM UTC

Duration

5h 21m

total

Resolved

11:14 PM UTC

Sep 29, 2026

Severity: Degraded Performance|Affected: ChatGPT|Duration: 5h 21m

Incident Timeline9 updates · oldest first

05:52 PM UTC—Investigating

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.

06:24 PM UTC—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.

07:08 PM UTC—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.

07:39 PM UTC—Monitoring

We have applied the mitigation and are monitoring the recovery.

09:09 PM UTC—Monitoring

We have applied the mitigation and are monitoring the recovery.

10:03 PM UTC—Monitoring

We have applied the mitigation and are monitoring the recovery.

10:47 PM UTC—Monitoring

We have applied the mitigation and are monitoring the recovery.

11:14 PM UTC—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.

08:26 AM UTC—Resolved

All impacted services have now fully recovered.

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About This Report

ChatGPT 30-day uptime: 100% based on Tickerr's independent monitoring checks.

This incident was sourced from ChatGPT's official Atlassian Statuspage. Tickerr ingests updates every 10 minutes to surface incidents as they are posted by the provider.

This incident lasted 5h 21m.

Tickerr monitors 90+ AI tools independently. View live ChatGPT status or all AI tool status.

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