Elevated errors for Claude Opus 5.5 — Anthropic Incident Timeline & Status

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Anthropic Status

Elevated errors for Claude Opus 5.5

Started

Oct 6, 12:24 PM UTC

Resolved

Oct 6, 12:43 PM UTC

Duration

18 minutes

Resolvedmajor impactVendor link

Affected:Claude API (api.anthropic.com)Claude Code Claude Cowork claude.ai

Update timeline

ResolvedOct 6, 12:43 PM

The issue affecting Claude Opus 5.5 has been resolved.

IdentifiedOct 6, 12:37 PM

We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.

InvestigatingOct 6, 12:24 PM

We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.