Anthropic: Degraded performance for Claude Fable 5.1 — claude.ai, Claude API (api.anthropic.com) +2

OUTAGE Anthropic: Degraded performance for Claude Fable 5.1 — claude.ai, Claude API (api.anthropic.com) +2

The issue affecting claude.ai, the Claude API, Claude Code, and Claude Cowork has been resolved.

investigating 2026-11-08 08:28Z
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
monitoring 2026-11-08 08:39Z
A fix has been deployed for Claude Fable 5.1 and we are monitoring for recovery.
resolved 2026-11-08 08:54Z
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.