major impact Anthropic โœ“ Resolved

Elevated error rates on Claude Opus and Sonnet 4.6

Started
2026-03-21 00:07 UTC
Resolved
2026-03-21 01:42 UTC
Duration
95 minutes
Date
2026-03-21

Incident Timeline

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

investigating 2026-03-21 00:07 UTC

We are currently investigating elevated error rates affecting Claude Opus 4.6. Our team is actively working to identify the root cause.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:17 UTC

We have identified an issue resulting in elevated errors on both Claude Opus and Sonnet 4.6, and are working to resolve this issue as quickly as possible.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

identified 2026-03-21 00:58 UTC

We have observed success rates return to normal for Claude Opus 4.6, and are working to fully resolve elevated errors for Claude Sonnet 4.6.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

resolved 2026-03-21 01:42 UTC

This incident has been resolved.

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