DeepSeek went down. After 8 a.m. Beijing time on October 15, the DeepSeek website and app displayed the message “The server is temporarily unavailable.” According to official DeepSeek updates, the chat service and DeepSeek V4.1 Flash API service were partially disrupted, and website/API performance was degraded. The company was investigating the issue and identifying the cause. At the time of publication, the outage had lasted 50 minutes.