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Anthropic · AIFeb 4, 2026, 10:13 UTC 9 months ago

Elevated errors on Claude Opus 4.5 and Sonnet 4.5

MajorNot disclosedUpdated 47d ago
Feb 4, 10:13 UTCFeb 4, 11:11 UTC
Duration
58m
Impact
Major
Root cause
Not disclosed
Anthropic, 90 days
49 incidents
Affected
Not listed by the vendor.
Status page

Final update

The issue has been fully resolved. The timelines are: * 02:00 PT / 10:00 UTC to 02:35 PT / 10:35 UTC * 02:54 PT / 10:54 UTC to 03:01 PT / 11:01 UTC

Timeline

  1. Resolved · Feb 4, 11:11 UTC
    The issue has been fully resolved. The timelines are: * 02:00 PT / 10:00 UTC to 02:35 PT / 10:35 UTC * 02:54 PT / 10:54 UTC to 03:01 PT / 11:01 UTC

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