For approximately one hour, users experienced elevated errors across multiple Claude models on both claude.ai and the Anthropic API, with some users reporting complete service unavailability. The issue was identified and a fix was implemented within roughly 45 minutes of the incident starting. The incident was fully resolved by 9:26am PT on July 21, 2026.
From 8:28am PT / 15:28 UTC through 9:26am PT / 16:26 UTC users experienced elevated errors on requests to multiple Claude models. This issue has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
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