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ChangesClaudeElevated errors for multiple models

Claude: Major incident: Elevated errors for multiple models

Major incidentmajor (vendor)Changed Detected status.claude.com (opens in new tab)
Summary

Summary pending. The diff below shows exactly what changed.

Discussed on Hacker News

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Incident page: the full timeline of updates

What changed

Struck in red is what Claude removed; blue is what they added. Muted text is unchanged context.

AddedTitle#1
Before: not present
After: Elevated errors for multiple models
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: investigating
AddedStart time#4
Before: not present
After: 2026-10-25 06:14 UTC
AddedAffected components#5
Before: not present
After: claude.ai, Claude API - api.anthropic.com, Claude Code, Claude Cowork
AddedUpdateinvestigating#6
Before: not present
After: 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.

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History of this incident

TodaySunday, October 25Sun, Oct 25

4 incident changes

All Claude changesClaude profileMarkdownJSON