Anthropic incident

Elevated errors for Claude Opus 5.5

Major Resolved Upstream link ↗

Started

October 6, 2026 at 12:24 PM UTC

Duration

18 min

Resolved

October 6, 2026 at 12:43 PM UTC

Updates timeline

  1. Investigating

    We are investigating elevated errors on requests to Claude Opus 5.5. We will provide an update as soon as possible.

  2. Identified

    We have identified the cause of elevated errors on requests to Claude Opus 5.5 and are working on a fix. We will provide an update as soon as possible.

  3. Resolved

    The issue affecting Claude Opus 5.5 has been resolved.

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