Elevated errors for Claude Mythos 5.1 and Claude Fable 5.1
The issue affecting Claude services has been resolved. Impact occurred from 13:57 to 14:20 UTC
Claude Fable 5.1 Uptime Status
OperationalClaude model for demanding reasoning and long-horizon agentic work
30-Day Uptime
97.84%
Past Incidents (30d)
11
Error rate (24h)
0.00%
Is Claude Fable 5.1 Down Now?
Last 30 days
21/30 days operational | 97.84% uptime
30 days ago
Today
Operational
Degraded / Partial
Outage
Endpoint & Model ID
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Elevated latency on the Claude API for some users
The issue affecting Claude services has been mitigated.
Elevated errors for multiple models
The issue affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5 has been resolved. Impact has ended as of 9:16 PT / 16:16 UTC.
Elevated errors for Claude Sonnet 5
This incident has been resolved.
Elevated errors for Claude Sonnet 5
The issue affecting Claude Sonnet 5 has been resolved. Impact occurred from 2:05pm PT / 21:05 UTC to 2:19pm PT / 21:19 UTC.
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