Changes Claude Elevated errors for Claude Fable 5.1

Claude: Major incident: Elevated errors for Claude Fable 5.1

Major incidentoutage (model (Jev), 97%)Changed 2026-10-25 08:17 UTCDetected 2026-10-25 08:23 UTCstatus.claude.com

Summary

Claude reported a major incident involving elevated errors for Claude Fable 5.1 across claude.ai, Claude API - api.anthropic.com, Claude Code, and Claude Cowork, starting 2026-10-25 08:17 UTC. The vendor said it identified the cause and was working on a fix; the incident remained open when archived, with 0 min elapsed at the last update.

Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.

Incident page: the full timeline of updates

What changed

~~Struck in red~~ is what Claude removed; blue is what they added. Muted text is unchanged context.

AddedTitle#1

not present

Elevated errors for Claude Fable 5.1

AddedImpact#2

not present

major

AddedStatus#3

not present

identified

AddedStart time#4

not present

2026-10-25 08:17 UTC

AddedAffected components#5

not present

claude.ai, Claude API - api.anthropic.com, Claude Code, Claude Cowork

AddedUpdateinvestigating2026-10-25 08:17 UTC#6

not present

We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.

AddedUpdateidentified2026-10-25 08:17 UTC#7

not present

We have identified the cause of elevated errors on requests to Claude Fable 5.1 and are working on a fix. We will provide an update as soon as possible.

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

Archive proof

Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.

How the archive is checked, and what it cannot prove.

Oct 25
After captured 08:23 UTC
In the 2026-10-25 checkpoint, timestamped by FreeTSA and DigiCert on Oct 26, 00:41 UTC. Record hash 99b6456e000eb7cb…
Download proof

History of this incident

Sunday, October 25

3 incident changes

Normal progress
08:54Incident
Incident updateElevated errors for Claude Fable 5.1
Normal progress
08:34Incident
Incident updateElevated errors for Claude Fable 5.1
Outage
08:17Major incident
Elevated errors for Claude Fable 5.1this change
Claude reported a major incident involving elevated errors for Claude Fable 5.1 across claude.ai, Claude API - api.anthropic.com, Claude Code, and Claude Cowork, starting 2026-10-25 08:17 UTC. The vendor said it identified the cause and was working on a fix; the incident remained open when archived, with 0 min elapsed at the last update.

Cite this

Major incident: Elevated errors for Claude Fable 5.1 on Claude’s status page, changed 2026-10-25 08:17 UTC (change 1 of 3).

Title: Major incident: Elevated errors for Claude Fable 5.1
Vendor: Claude
Date: 2026-10-25 08:17 UTC
URL: https://rewindex.com/change/ibbe7a758e8b797

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