Anthropic incident

Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models

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Resolved after 33 minutes, affecting claude.ai and Claude API (api.anthropic.com) and 1 more, on July 25, 2026.

investigating Jul 25, 2026, 09:34 PM UTC

We are investigating elevated errors on requests to Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.

Started
Jul 25, 2026, 09:34 PM UTC
Resolved
Jul 25, 2026, 10:08 PM UTC
Duration
33m
Detected by Pingoru
Jul 25, 2026, 09:34 PM UTC

Affected components

claude.aiClaude API (api.anthropic.com)Claude CodeClaude Cowork

Update timeline

  1. investigating Jul 25, 2026, 09:34 PM UTC

    We are investigating elevated errors on requests to Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.

  2. resolved Jul 25, 2026, 10:08 PM UTC

    This incident has been resolved.

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