Anthropic incident

Degraded performance for Claude Opus 5, Claude Sonnet 5

Minor Resolved View vendor source →

Anthropic experienced a minor incident on August 17, 2026 affecting claude.ai and Claude API (api.anthropic.com) and 1 more component, lasting 1h 32m. The incident has been resolved; the full update timeline is below.

Started
Aug 17, 2026, 01:56 PM UTC
Resolved
Aug 17, 2026, 03:29 PM UTC
Duration
1h 32m
Detected by Pingoru
Aug 17, 2026, 01:56 PM UTC

Affected components

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

Update timeline

  1. investigating Aug 17, 2026, 01:56 PM UTC

    We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.

  2. investigating Aug 17, 2026, 02:25 PM UTC

    Claude Opus 5 is operational. Claude Sonnet 5 is degraded. We are investigating.

  3. monitoring Aug 17, 2026, 02:39 PM UTC

    A fix has been implemented and we are monitoring the results.

  4. resolved Aug 17, 2026, 03:29 PM UTC

    This incident has been resolved.