**Incident Summary** Claude Sonnet 5 experienced elevated errors across all major Anthropic platforms — the console, API, and claude.ai — for approximately 40 minutes on August 4, 2026. A fix was implemented roughly 12 minutes into the incident and monitored before the issue was fully resolved.
This incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are currently investigating this issue.
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