Claude Status · History · Incident #5929

RESOLVED

Elevated errors on Claude Opus 5 and Haiku 4.5

Minor · Started Jul 27, 2026 · 1:39 PM

Duration

56m
Severity

Minor
Detection lead

—
User reports

Peak 1/hr

Summary

Elevated errors on Claude Opus 5 and Haiku 4.5

As of 7:34 PST / 14:34 UTC the errors have returned to baseline.

Started

Jul 27, 2026 · 1:39 PM
Resolved

Jul 27, 2026 · 2:36 PM
Duration

56m
Severity

Minor

Event timeline

How this incident unfolded

◐

Investigating
Jul 27 · 1:39 PM Claude

We are currently investigating this issue.
◐

Investigating
Jul 27 · 1:41 PM Claude

We are continuing to investigate this issue.
◐

Investigating
Jul 27 · 1:42 PM Claude

We are currently investigating this issue.
◐

Investigating
Jul 27 · 2:04 PM Claude

Haiku 4.5 is also returning errors.
✓

Resolved
Jul 27 · 2:36 PM Claude

As of 7:34 PST / 14:34 UTC the errors have returned to baseline.

User reports · incident window

Report volume over time

Hourly report count. Red bars mark the incident window.

Peak: 1 reports/hr

← Before incident After →

Pattern

Other recent incidents

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