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Anthropic (Claude)

Elevated error rates on requests to some models

Major Impact Identified Ongoing May 15, 2026

Incident Lifecycle

Investigating Investigating Identified Identified

Incident Timeline

Identified
We are working to resolve errors impacting Claude Opus 4.6, and have seen both Sonnet 4.6 and Opus 4.7 return to normal success rates.
May 15, 2026 at 1:26 AM UTC
Identified
We are currently working to resolve issues affecting requests to Claude Opus and Sonnet 4.6, though success rates for Opus 4.7 have returned to normal.
May 15, 2026 at 1:06 AM UTC
Investigating
We are continuing to investigate this issue.
May 15, 2026 at 12:19 AM UTC
Investigating
We are currently investigating this issue.
May 15, 2026 at 12:18 AM UTC
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Similar Anthropic (Claude) Incidents

Elevated error rate on multiple models Major May 22, 2026 Elevated errors on Claude Opus 4.7 Major May 19, 2026 Elevated errors for Claude Opus 4.7 Major May 18, 2026 Elevated error rates on requests to multiple models Major May 16, 2026 Claude.ai is experiencing elevated error rates Major May 13, 2026