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Claude incident

Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5

Resolved after 1 h 34 min.

Started
Ended
Worst state
Partial outage
On Claude’s status page
Source
Components
Claude API (api.anthropic.com), Claude Code, Claude Cowork, claude.ai

Live Claude status Full Claude outage history

Timeline

  1. Claude status page · Reported Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5
  2. Claude status page · Investigating We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5. We will provide an update as soon as possible.
  3. Claude status page · Investigating We are investigating elevated errors on requests to Claude Mythos 5 and Claude Fable 5. We will provide an update as soon as possible.
  4. Claude status page · Resolved The issue affecting Claude Mythos 5 and Claude Fable 5 has been resolved.

Cite this incident

Site Qwality, “Elevated errors for Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5,” Aug 13, 2026, https://siteqwality.com/is-claude-down/incidents/claude-202608131433/

Free to quote with a link to this page.