Claude outage on November 8, 2026: what happened and how long it lasted
On November 8, 2026, Claude (Anthropic) had degraded performance between 08:28 and 08:56 UTC, about 28 min in total. The vendor posted 1 incident.
Timeline（UTC）
- OfficialOfficial incident posted: Degraded performance for Claude Fable 5.1
- MeasuredModelBank probes detect degraded performance
- OfficialOfficially resolved: Degraded performance for Claude Fable 5.1
- MeasuredProbes back to normal (lasted 26 min)
Hourly measurements (UTC)
Official updates（UTC）
- investigatingWe are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
- monitoringA fix has been deployed for Claude Fable 5.1 and we are monitoring for recovery.
- resolvedThe 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.
Claude reliability lately
Measured availability over the last 30 days: 99.96%; 15 days with an outage or degradation in the last 90 days.
Previous outages: 2026-10-28 · 2026-10-27 · 2026-10-25 · 2026-10-24 · 2026-10-22 · 2026-10-21
Alternatives while Claude is down
Open one to see whether it is up right now.
FAQ
Was Claude down on November 8, 2026?
On November 8, 2026, Claude (Anthropic) had degraded performance between 08:28 and 08:56 UTC, about 28 min in total. The vendor posted 1 incident.
Why was Claude down?
The vendor's own description: Degraded performance for Claude Fable 5.1. See the official status page for the root cause.
Is Claude working now?
It is working normally now. Live status: https://modelbank.ai/status/claude (tested every 2 minutes).
What can I use instead when Claude is down?
Switch temporarily to ChatGPT, Gemini, Grok, Le Chat, Command, Perplexity API — check on ModelBank that they are up first.
Does Claude go down often?
Measured availability over the last 30 days: 99.96%; 15 days with an outage or degradation in the last 90 days.
How do I hear about the next outage first?
Subscribe for free on ModelBank: email, browser push, or Slack / Discord / Feishu.
Sources: ModelBank's probes every 2 minutes and Claude's official status page. Please cite this page when quoting.