DeepSeek’s chat function was temporarily unavailable again on Nov. 7, with users seeing a message saying the server was busy and asking them to try again later. The company’s status page recorded a partial outage affecting the Chat Service, DeepSeek V4 Pro API and DeepSeek V4.1 Flash API from 15:11. DeepSeek said it was investigating the cause and later reported that a fix had been implemented, with monitoring underway to assess its effectiveness. An API (application programming interface) allows software systems to communicate with a service.