Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
Claude · Last saved provider status: resolved
The last saved event status is not the current service status. Source lists can be incomplete, and disappearance from a source does not confirm recovery. Open the current report or the official source for newer evidence.
Saved event details
- Provider status
- resolved
- Provider impact
- critical
- Provider record created
- 23 Oct 2026, 23:37:42 UTC
- Provider record updated
- 24 Oct 2026, 00:11:20 UTC
- Explicit provider start
- 23 Oct 2026, 23:37:42 UTC
- Explicit provider end
- 24 Oct 2026, 00:11:20 UTC
Affected components reported by the provider
- Claude Cowork
bpp5gb3hpjcl - Claude API (api.anthropic.com)
k8w3r06qmzrp - claude.ai
rwppv331jlwc - Claude Code
yyzkbfz2thpt
These associations describe this event’s reported scope. They do not establish current component availability or verified dependencies.
A record creation time is not necessarily an outage start. Unreported times remain unavailable. We do not calculate downtime from collection times.
Anthropic's complete Claude status report, including the app, API, Code and other listed components. An operational report does not verify any model or account.
Provider updates in saved revisions
Latest first. We show up to 100 distinct updates from the latest 20 saved content revisions. Revised wording at the same provider time is retained separately.
- resolved
The issue affecting Claude models has been resolved. Impact occurred from 16:28 PT / 23:28 UTC on October 23 to 16:59 PT / 23:59 UTC on October 23.
Seen in a saved revision at 24 Oct 2026, 00:12:14 UTC - monitoring
We are seeing success rates return to normal for all affected models, and are continuing to monitor to ensure no further issues.
Seen in a saved revision at 24 Oct 2026, 00:12:14 UTC - identified
We have identified the cause of elevated errors on requests to Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5, as well as fast mode requests to Opus 5.5 and are working on a fix. We will provide an update as soon as possible.
Seen in a saved revision at 24 Oct 2026, 00:12:14 UTC - investigating
We are investigating elevated errors on requests to Claude Fable 5.1. We will provide an update as soon as possible.
Seen in a saved revision at 24 Oct 2026, 00:12:14 UTC