Elevated errors on Sonnet 4, Sonnet 4.5 and Haiku 4.5

Service Status & Alerts
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Nov 20, 12:03 UTC
Resolved - As of 3:55 PT / 11:55 UTC the level of errors on Sonnet 4.0 has returned to normal.

This is a companion discussion topic for the original entry at https://status.claude.com/incidents/xbbf1wq2dlz7