Degraded performance for Claude Fable 5

Resolved

Yes — Claude had a problem on October 21, 2026, and Claude (Anthropic) has since marked it resolved. Claude (Anthropic)'s latest word: “The issue affecting other Claude models has been resolved.”

See Claude's live status →

Timeline

Started: 10/21/2026, 7:49:06 PM

Last update: 10/21/2026, 8:29:17 PM

Resolved: 10/21/2026, 8:29:17 PM

Affected: rwppv331jlwc, k8w3r06qmzrp, yyzkbfz2thpt, bpp5gb3hpjcl

Claude (Anthropic)'s official report →

Updates

resolved
The issue affecting other Claude models has been resolved.
10/21/2026, 8:29:17 PM
investigating
We are investigating elevated errors on requests to Claude Fable 5. We will provide an update as soon as possible.
10/21/2026, 7:49:06 PM

More Claude (Anthropic) incidents

Elevated errors on platform.claude.com — resolved, 14d ago
Issue with spend limits — resolved, 14d ago
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Elevated errors for Claude Opus 5.5 — resolved, 15d ago
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1 — resolved, 16d ago
Delayed credits on the Claude Platform — resolved, 20d ago

Is Claude down right now?All outage history →