# Degraded performance for Claude Fable 5.1

- Provider: [Anthropic](https://down.guide/anthropic)
- Level: confirmed
- Impact: Degraded
- lasted 26m
- started 2026-11-08 08:28 UTC
- claude.ai, Claude API (api.anthropic.com), Claude Code +1
- id: DWN-81d9a97733
- Official page: https://stspg.io/3m3q1nwb142k

## Summary
The provider says Claude Fable 5.1 had elevated errors on requests, affecting claude.ai, the Claude API, Claude Code, and Claude Cowork, from 08:18 to 08:32 UTC on Nov 8. A fix was deployed, and the provider says the issue is resolved.

_Written by anthropic/claude-haiku-5.5 from Anthropic's own updates._

## Updates from Anthropic
### 2026-11-08 08:28 UTC: investigating
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.

### 2026-11-08 08:39 UTC: monitoring
A fix has been deployed for Claude Fable 5.1 and we are monitoring for recovery.

### 2026-11-08 08:54 UTC: resolved
The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved. Impact occurred from 00:18 PT / 08:18 UTC on Nov 8 to 00:32 PT / 08:32 UTC on Nov 8.

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