major✓ Resolved

Elevated errors for Claude Sonnet 5.5

Anthropic (Claude)•2026-10-27 15:09 UTC

Status

resolved

Duration

41m

Updates

Coverage

0 articles

INCIDENT TIMELINE

✓ Resolved2026-10-27 15:50 UTC

This incident has been resolved.

resolved2026-10-27 15:50 UTC

The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 07:42 PT / 14:42 UTC to 08:17 PT / 15:17 UTC.

identified2026-10-27 15:09 UTC

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

📊 TECHNICAL DETAILS

Internal ID

b2435289-aa2a-4583-95ef-01cc3ba4bab4

External ID

lqhknfdjrcst

🕐 Started

2026-10-27 15:09 UTC

🔄 Last Updated

2026-10-27 15:50 UTC

✓ Resolved

2026-10-27 15:50 UTC

MAJOR

Impact Level

41m

Total Duration

Status Updates

Affected Components

claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork

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