The elevated error rate for Claude Haiku 4.5 has been resolved, and it's back to normal!
Elevated error rate for Claude Haiku 4.5 resolved
Original: Elevated errors on Claude Haiku 4.5
Importance: サービスの一時的な障害が発生したため、影響を受けたユーザーには関心がある。
Summary
On April 28, 2026, the elevated error rate for Claude Haiku 4.5 has been resolved. The errors occurred between 11:53 and 12:44 UTC on April 28. After implementing a fix, the situation is now being monitored, and services are back to normal.
Key Points
- Error rate elevated for Claude Haiku 4.5 on April 28
- Errors occurred between 11:53 and 12:44 UTC
- A fix was implemented and is currently being monitored
- Service is now back to normal
View developer notes (APIs, breaking changes, migration)
The elevated error rate for Claude Haiku 4.5 was recorded between 11:53 and 12:44 UTC on April 28, 2026. After investigating the issue, a fix was implemented, and the system is now stable. Developers should verify the impact on their applications.
Source: https://status.claude.com/incidents/c20m4lbfd6pm
Outlet: Anthropic Status
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