Claude Status · History · Incident #5911
RESOLVEDElevated errors for Opus 5
Major · Started Jul 26, 2026 · 9:17 AM
⚡ Pulsetic detected this 700 minutes before Claude acknowledged it
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Claude Status · History · Incident #5911
RESOLVEDMajor · Started Jul 26, 2026 · 9:17 AM
⚡ Pulsetic detected this 700 minutes before Claude acknowledged it
Duration
1h 27m
Severity
Major
Detection lead
700 min
User reports
Peak 2/hr
Summary
This incident has been resolved.
Started
Jul 26, 2026 · 9:17 AM
Resolved
Jul 26, 2026 · 10:44 AM
Duration
1h 27m
Severity
Major
Detection lead
Pulsetic detected
~700 min before acknowledgement
User reports and synthetic probes crossed the detection threshold
Event timeline
Detected by Pulsetic
Jul 25 · 9:37 PM PulseticUser reports and synthetic probes crossed the detection threshold — 700 min before the official acknowledgement.
Investigating
Jul 26 · 9:17 AM ClaudeWe are currently investigating this issue.
Identified
Jul 26 · 9:45 AM ClaudeThe issue has been identified and a fix is being implemented.
Identified
Jul 26 · 10:28 AM ClaudeWe are continuing to work on a fix for this issue.
Monitoring
Jul 26 · 10:34 AM ClaudeA fix has been implemented and we are monitoring the results.
Resolved
Jul 26 · 10:44 AM ClaudeThis incident has been resolved.
User reports · incident window
Hourly report count. Red bars mark the incident window.
Peak: 2 reports/hr
Pattern
Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models
Jul 25, 2026 · 33m
View incident →Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5
Jul 25, 2026 · 1h 4m
View incident →Sonnet 4.6 and Sonnet 5 errors elevated
Jul 25, 2026 · < 1m
View incident →Pulsetic catches degradations minutes before vendors acknowledge them. This one: 700 minutes early.
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