On the afternoon of November 3, DeepSeek's chat feature experienced a malfunction, with the chat interface displaying the message "Server is busy, please try again later." The official website subsequently updated its status, stating that an earlier partial interruption of web and API services had been resolved and that the company was monitoring the results. However, the API and chat services for DeepSeek V4 Pro and V4.1 Flash remained in a degraded state.