Resolved
Anthropic (Claude) · degraded service
Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
Posted 5 Oct 13:05 UTC, last seen today 14:09 UTC.
What it affected
As the provider names itWhat the provider posted
Newest first- 5 Oct 13:21 UTCResolvedThe issue affecting Claude Mythos 5.1 and Claude Fable 5.1 has been resolved. Impact occurred from 05:40 PT / 12:40 UTC to 06:10 PT / 13:10 UTC.
- 5 Oct 13:05 UTCInvestigatingWe are investigating elevated errors on requests to Claude Mythos 5.1 and Claude Fable 5.1. We will provide an update as soon as possible.
Around it
From the sources ChangeIntel reads; a match in time is not a causeElsewhere at the same time
Earlier incidents in the 14 days before
- Anthropic (Claude): Delayed credits on the Claude PlatformService incident · 1 Oct
- Anthropic (Claude): Elevated errors on claude.ai, Claude Code, Claude Cowork and the Claude APIService incident · 29 Sep
- Anthropic (Claude): Elevated errors for multiple modelsService incident · 22 Sep
Changed in the 14 days before
What changed
First observed 14 Oct 2026No field changes in the recorded history.
Cite this recorded revision to keep the same title, summary, facts and links when the page changes.
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