Claude (Anthropic) · 2h ago
Elevated errors for Claude Sonnet 5.5
ResolvedYes — Claude had a problem on October 27, 2026, and Claude (Anthropic) has since marked it resolved. Claude (Anthropic)'s latest word: “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.”
Timeline
Started: 10/27/2026, 3:09:08 PM
Last update: 10/27/2026, 3:50:17 PM
Resolved: 10/27/2026, 3:50:17 PM
Affected: rwppv331jlwc, k8w3r06qmzrp, yyzkbfz2thpt, bpp5gb3hpjcl
Updates
resolved
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.
10/27/2026, 3:50:17 PM
identified
We are investigating elevated errors on requests to Claude Sonnet 5.5. We will provide an update as soon as possible.
10/27/2026, 3:09:09 PM
More Claude (Anthropic) incidents
- Elevated errors for Claude Sonnet 5.5 — resolved, 8h ago
- Elevated errors for Claude Fable 5.1 — resolved, 2d ago
- Elevated errors for Claude Sonnet 5.5 and other models — resolved, 2d ago
- Elevated errors for Claude Fable 5 and Claude Fable 5.1 — resolved, 4d ago
- Elevated errors for Claude Opus 5.5 — resolved, 4d ago
- Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5 — resolved, 4d ago