# Elevated errors for Claude Sonnet 5.5 and other models > Source: > Published: 2026-10-25 07:53:39+00:00 Oct `25`, `07:53` UTC **Resolved** - The issue affecting Claude services has been resolved. Impact occurred from 23:05 PT on October 24 / 06:05 UTC on October 25 to 23:35 PT on October 24 / 06:35 UTC on October 25. Oct `25`, `06:35` UTC **Monitoring** - A fix has been deployed for the issue affecting Claude services and we are monitoring for recovery. Oct `25`, `06:27` UTC **Identified** - We have identified the cause of elevated errors on requests to Claude Sonnet 5.5 and are working on a fix. We will provide an update as soon as possible. Oct `25`, `06:14` UTC **Investigating** - We are investigating elevated errors on requests to Claude Mythos 5.1, Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5, and Claude Haiku 5.5. We will provide an update as soon as possible.