Live / Incidents / Claude
Claude: Intermittent error spikes for Claude Mythos 5.1 and Claude Fable 5.1
Claude · claude.aiImpact: majorResolved2026-09-15 11:14 UTC
Public — what happened
Summary
A fix has been deployed for Claude Mythos 5.1 and Claude Fable 5.1 and we are monitoring to ensure it has resolved the issue.
Timeline
- Started — 2026-09-15 09:48 UTC
- Last update — 2026-09-15 11:14 UTC
- Resolved — 2026-09-15 11:14 UTC
With SquidGrid — where it starts on the route
Independent path health
The status page is the symptom. SquidGrid measures the paths that reach Claude against their own baselines — whether the routes carrying your traffic degraded, at which handoff, and who owns that stretch.
🔒 Sign in to seeCustomers get the live Provider Assessment Report for Claude: its full incident track record, what tends to break, and recent public reports of problems.
Included with any paid plan.
Open the Claude report →