anthropic
Elevated error rates on Sonnet 4
Status: resolved | Severity: degraded
Cite this incidentTimeline
Started: 2025-12-17T10:45:58.089Z
Updated: 2025-12-17T11:20:56.120Z
Resolved: 2025-12-17T11:20:56.093Z
Impact scope
Impacted regions: None reported
Impacted models: None reported
Impacted components: rwppv331jlwc, k8w3r06qmzrp
Official sources
Provider: anthropic
View official incident pageUpdates
resolved
This incident has been resolved.
2025-12-17T11:20:56.093Z
monitoring
A fix has been implemented and we are monitoring the results.
2025-12-17T11:13:28.827Z
identified
The issue has been identified and a fix is being implemented.
2025-12-17T11:09:27.231Z
investigating
We have identified that this affects only free tier claude.ai users.
2025-12-17T10:49:04.487Z
investigating
We are currently investigating this issue.
2025-12-17T10:45:58.206Z