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Increased Error Rate for Claude Opus 5

·2026.07.27 20:32

Key point

The error issue affecting Anthropic's Claude services and API has been resolved.

Details

An incident occurred involving an increased error rate across Anthropic's key services, including the Claude Opus 5 model as well as claude.ai, Claude API, Claude Code, and Claude Cowork.

The issue is currently Resolved, with error rates having returned to baseline as of July 27, 2026, 4:47 PST (11:47 UTC).

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