Between 13:25 and 14:43 PT today, Claude Opus 4.5 and Sonnet models experienced degraded availability. A network routing misconfiguration caused traffic to backend infrastructure to be dropped, preventing requests from completing. The misconfiguration has been reverted and service is fully restored. We’re conducting a review to improve our detection and prevention of similar issues.
Posted Dec 14, 2025 - 23:45 UTC
As of 14:43 PT / 22:43 UTC we have seen full recovery across all models.
Posted Dec 14, 2025 - 22:51 UTC
The issue has been identified and a fix is being implemented.
Posted Dec 14, 2025 - 22:46 UTC
We are continuing to investigate the issue.
Posted Dec 14, 2025 - 22:36 UTC
We have identified that the outage is related to Sonnet 4.0, Sonnet 4.5, and Opus 4.5.
Posted Dec 14, 2025 - 21:46 UTC
We are currently investigating this issue.
Posted Dec 14, 2025 - 21:31 UTC
This incident affected: claude.ai, platform.claude.com (formerly console.anthropic.com), Claude API (api.anthropic.com), and Claude Code.