Claude AI users worldwide are facing significant disruptions due to a widespread outage that began on April 6, 2026. Reports indicate that login failures and chat errors are affecting the web, desktop, and mobile platforms, as well as Claude Code, a tool for developers. Anthropic, the company behind Claude, has confirmed the issue on its status page, stating that they are working to resolve elevated error rates affecting user access and functionality. Users have reported encountering 'API Error 401' and problems with login authentication. The situation appears to be fluctuating, with some users experiencing intermittent access. As of now, Anthropic has not provided a specific timeline for when services will be restored, and users are advised to monitor the official status page for updates.