Claude (Anthropic) outage, 27 October 2026
Elevated errors for Claude Sonnet 5.5
- Started
- Resolved
- 27 Oct 2026, 09:56 UTC (after 42 min)
- Impact
- Major
- Affected
- claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork
Is this still happening?
No. Claude (Anthropic) marked this incident resolved on 27 Oct 2026, 09:56 UTC, 42 min after it began.
Right now: Claude (Anthropic) reports all systems operational. (as of 27 Oct, 11:33 UTC) Live Claude (Anthropic) status
Last update from Claude (Anthropic)
The issue affecting Claude services has been resolved.
Read the full incident on the official Claude (Anthropic) status page
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