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Outage in Claude

Elevated error rate on multiple models

Resolved Major
May 22, 2026 - Started 3 days ago - Lasted about 5 hours
Official incident page

Incident Report

Summary AI Generated

Claude experienced elevated error rates across multiple models for 4.5 hours, primarily affecting Claude Opus 4.7 and Sonnet 4.6, with some impact on Haiku 4.5. The incident affected the console, API, and main Claude website, causing service disruptions for users trying to access the AI models. The issue was gradually resolved with success rates returning to normal first for Opus 4.7 and Sonnet 4.6, followed by full resolution of remaining Haiku 4.5 errors.

We are currently investigating this issue.
Components affected
Claude console.anthropic.com Claude api.anthropic.com Claude claude.ai
Latest Updates ( sorted recent to last )
RESOLVED 2 days ago - at 05/22/2026 08:50AM

This issue has been resolved.

MONITORING 2 days ago - at 05/22/2026 06:32AM

We are monitoring recovery on Claude Opus 4.7, and working to fully resolve remaining errors impacting Haiku 4.5. We will provide additional updates shortly.

MONITORING 2 days ago - at 05/22/2026 06:17AM

We are currently working to resolve some additional errors impacting Claude Opus 4.7 and Haiku 4.5, we will provide an additional update shortly.

MONITORING 2 days ago - at 05/22/2026 05:53AM

We have seen success rates on Claude Opus 4.7 and Sonnet 4.6 return to normal. We are monitoring closely to ensure no further issues, and will provide an additional update shortly.

IDENTIFIED 2 days ago - at 05/22/2026 05:25AM

We are continuing to work to fully resolve issues impacting Claude Opus 4.7, and Sonnet 4.6. At this time, success rates on Claude Opus 4.7 have stabilized. We will provide additional updates shortly.

IDENTIFIED 3 days ago - at 05/22/2026 04:40AM

We have identified an issue resulting in elevated error rates, primarily on Claude Opus 4.7 and Sonnet 4.6. We are working to resolve these issues, and will provide additional updates as soon as possible.

INVESTIGATING 3 days ago - at 05/22/2026 04:16AM

We are currently investigating this issue.

source IsDown Users report possible problems with Claude Reports started 11 minutes before official outage was reported

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