Anthropic investigates widespread errors reported across Claude platforms

Reports surfaced on November 13, 2026, indicating that users were encountering numerous errors across several Anthropic services, including claude.ai, Claude Code, and platform.claude.com. The issue was documented via the Claude Status website. Anthropic has issued an official statement confirming that they are actively investigating problems related to user authentication occurring on both Claude.ai and Claude Code. The company promised to provide updates on the situation as soon as they become available. The disruption was noted to affect multiple interfaces, specifically naming claude.ai, Claude Console (platform.claude.com), Claude Code, and Claude Cowork.