On Monday, Anthropic's AI assistant Claude experienced a brief outage lasting nearly three hours. Before 1:30 PM ET, the company confirmed multiple services were affected, including the Claude web interface, API, Claude Code, and Claude Cowork. Reports on Downdetector surged, indicating widespread impact. Anthropic stated it had attempted fixes and continued monitoring, though some models remain only partially restored.
The outage not only affected casual chat users but also caused significant disruption for teams relying on the API and Claude Code. Anthropic’s status page served as the primary official information source, but as of publication, the company had not disclosed the exact cause. Notably, just days earlier, the U.S. Department of Defense warned it might intervene with Anthropic under the Defense Production Act, following disputes over the company’s restrictions on AI tool usage. Combined with this service interruption, both Claude’s stability and regulatory risks have drawn market attention.

