Abstract:
At 13:04 pm on October 15, DeepSeek finally resumed service. The crash lasted for a total of 4 hours and 52 minutes. This was the most serious crash of DeepSeek this year.
The official service status page shows that at 8:11 am, the DeepSeek web page and APP began to experience abnormal service interruptions. The affected services include dialogue, DeepSeek V4.1 Pro API and DeepSeek V4.1 Flash API.
The official initially stated that the problem was being investigated, and then updated the processing progress to "The cause has been located, and the repair is being implemented" at 9:06, and it was updated to "The repair has been implemented, and the results are being monitored" at 12:49 pm, and "Service has been restored" at 13:04.
DeepSeek has a large number of users, and the crash time coincided with the peak office period of domestic working days. The scope of the impact was relatively large, and many users posted feedback on social media were affected. According to the "AI Application Market Development Insight Report for the First Half of 2026" released by QuestMobile, as of June 2026, DeepSeek has approximately 129 million monthly active users, ranking third among domestic AI native apps.
On October 5, a16z released the seventh edition of "Top 100 Gen AI Consumer Apps". Sorted by the number of monthly active users, DeepSeek ranked 14th among global AI applications and 5th among global AI websites.
Some industry analysts say that DeepSeek’s collapse may be due to computing power supply issues. Regarding the cause and specific circumstances of the crash, China Business News sent an inquiry to DeepSeek officials, but had not received a reply as of press time.
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