Claude AI Experiences Major Global Outage Affecting Thousands

A significant outage disrupted access to Claude AI on Thursday, June 18, 2026, with users worldwide unable to reach the service starting at approximately 9:00 AM UTC. DownDetector recorded over 2,500 reports of the disruption, indicating a widespread issue that extended beyond individual regions or countries. Social media posts from users across the globe confirmed the outage was not limited to any single geographic area.

Anthropic, the company operating Claude, acknowledged the problem at 9:41 AM UTC, stating on their official status page that they had identified the cause of the outage affecting Claude.ai and were actively working to resolve it. However, the company did not provide specific details about the nature of the technical issue or an estimated timeline for restoration of service.

The timing of the outage raised concerns among users who depend on Claude for work and productivity tasks. Prior to acknowledging the main outage, Anthropic's status page had only noted restrictions on Mythos 5 and Fable 5 services outside the United States, suggesting the broader outage developed independently of those known limitations.