Increased request error rates for Claude Mythos 5.1 and Claude Fable 5.1 are under investigation
The Claude Status page reported increased error rates for requests to Claude Mythos 5.1 and Claude Fable 5.1 on 5 October at 13:05 UTC. The incident is under investigation.
For business processes that depend on these models, increased error rates pose a risk of incomplete tasks; the extent of the impact on any particular operation is not yet known.