Elevated errors for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5
A record of the Anthropic incident on October 23, 2026 (UTC): start time, duration and severity, plus current status, what to do, and alternatives.
Other providers down at the same time
3 other incident(s) at different providers overlapped with this one. It may not have been limited to a single service — several providers were degraded at once.
- CursorInvestigating service outage - Grok models unavailable
- OpenAIDegraded experience with ChatGPT app connections using CIMD
- GitHubGrok 4.6 and Grok 4.7 Service Issues
Derived from our own archive of official status pages across 13 providers. Items lasting more than 24 hours and unresolved items are excluded, as they would misrepresent the moment.
How big was this outage?
This outage lasted 34 minutes. Across 66 major incidents recorded for Anthropic, the median duration is 78 minutes, making this the 50th longest.
Shorter than a typical outage.
Only incidents recorded as major-or-worse and already resolved are counted.
Current status
Anthropic is operating normally now. This incident has been resolved.
See current Anthropic status →What you can do during an outage
Source: Anthropic's official status page.
Other Anthropic incidents
- Elevated errors for Claude Fable 5 and Claude Fable 5.1October 24, 2026
- Elevated errors for Claude Opus 5.5October 24, 2026
- Elevated errors affecting ConnectorsOctober 22, 2026
- Degraded performance for Claude Fable 5October 21, 2026
- Issue with spend limitsOctober 7, 2026