We’ve suspended access to Claude Mythos 5 and Claude Fable 5
A record of the Anthropic incident on June 13, 2026 (UTC): start time, duration and severity, plus current status, what to do, and alternatives.
Other providers down at the same time
5 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.
- GitHubIncident with Copilot Availability
- PerplexityComputer Sandbox Issue
- GitHubDisruption with some GitHub services
- CursorElevated errors across many models on Anthropic
- CursorInvestigating service degradation — Composer 2.5
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 27036 minutes. Across 66 major incidents recorded for Anthropic, the median duration is 78 minutes, making this the 1th longest.
Longer 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 for Claude Fable 5.1, Sonnet 5.5, and Haiku 5.5October 23, 2026
- Elevated errors affecting ConnectorsOctober 22, 2026
- Degraded performance for Claude Fable 5October 21, 2026