Unverified50% confidenceEventExact time
The two model services Claude Mythos 5.1 and Claude Fable 5.1 began showing an abnormal rise in request error rates at 05:40 Pacific Time (12:40 UTC).
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/12/2026
First Seen
Valid until: 10/26/2026
Sources
Related Entities
Related Claims
Unverified在涉及Kerberos认证时，时钟偏差超过默认5分钟阈值会直接导致认证失败，准确的时间同步是安全体系的隐性基础55% similarUnverifiedScheduled tasks (routines) that had never had a cloud session started would previously be incorrectly displayed as "successful"; after v2.1.286 they are correctly marked as "failed".54% similarUnverifiedThe failure modes of LLM services are broader than those of traditional services, including overall provider unavailability, regional rate limiting, exhausted key quota, silent model upgrades causing output quality drift, and latency slowly creeping up rather than directly erroring; most of these scenarios do not trigger traditional 5xx alerts.51% similarUnverifiedAccording to the Millennium Investment case, Claude Fable 5.1 identified a bizarre bug with a trigger probability of approximately one in a million that had plagued the team for four to five years, by disassembling an external vendor's library and comparing it line by line against a core dump file.51% similarUnverifiedWhen reasoning chains grow longer and multi-level derivation is required, the accuracy of System 1 models collapses sharply, because a single forward pass cannot carry too many intermediate states.51% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1008490API
curl https://kongchang.com/api/v1/knowledge/claims/1008490MCP
get_claim(id=1008490)