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DeepSeek Faces 3-Day Service Outage, Lasting Over 10 Hours; Official Confirms Full Repairs

DeepSeek Faces 3-Day Service Outage, Lasting Over 10 Hours; Official Confirms Full Repairs

September 21, 2026
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China’s top AI firm DeepSeek has restored full service stability following three consecutive days of unusual disruptions. Monitoring data confirms that between March 29 and 31, users experienced connection drops and response delays across the web chat platform, mobile application, and API interfaces.

Official status logs detail three distinct incidents lasting 1 hour 48 minutes, 10 hours 13 minutes, and 1 hour 3 minutes, respectively. The major outage on March 30, which persisted for over 10 hours, significantly affected developers and enterprise users. DeepSeek has confirmed that all issues are now resolved and services have returned to normal operations.

DeepSeek

Over the last 30 days, DeepSeek's web chat service maintained an overall availability of 98.61%. While this meets industry averages, recent frequent anomalies have sparked industry-wide debates regarding large model infrastructure capacity. Analysts note that as user bases expand rapidly, computing cluster scheduling and network resilience are becoming critical bottlenecks for AI deployment. This event highlights a crucial industry lesson: beyond competing on model capabilities, providers must prioritize building robust, high-availability platforms with strong disaster recovery systems.

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