GitHub Status · History · Incident #4109
RESOLVEDDisruption with OpenAI Models
Critical · Started May 28, 2026 · 7:01 PM
$HTTP_PROTOCOL = (isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1)) || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ? 'https://' : 'http://'; $SITE_URL = $HTTP_PROTOCOL . $_SERVER['SERVER_NAME'] . '/'; ?>
GitHub Status · History · Incident #4109
RESOLVEDCritical · Started May 28, 2026 · 7:01 PM
Duration
1h 40m
Severity
Critical
Detection lead
—
User reports
—
Summary
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
Started
May 28, 2026 · 7:01 PM
Resolved
May 28, 2026 · 8:41 PM
Duration
1h 40m
Severity
Critical
Event timeline
Investigating
May 28 · 7:01 PM GitHubWe are investigating reports of impacted performance for some GitHub services.
Investigating
May 28 · 7:20 PM GitHubCopilot is experiencing degraded performance. We are continuing to investigate.
Investigating
May 28 · 7:40 PM GitHubWe are investigating errors with Copilot requests using OpenAI models
Investigating
May 28 · 8:06 PM GitHubOpen AI models are currently unavailable. We are shifting requests to other models to reduce impact.
Resolved
May 28 · 8:41 PM GitHubThis incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
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