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China's DeepSeek AI chatbot suffers longest outage since viral rise in early 2025

DeepSeek's chatbot faced a 7-hour outage affecting over 355 million users as the company deployed multiple fixes without disclosing a cause.

  • On Monday, Chinese artificial intelligence startup DeepSeek suffered a prolonged outage lasting 7 hours and 13 minutes, from early morning until 10.33am local time , disrupting service for hundreds of millions of users.
  • The extended downtime is unusual for DeepSeek, which has maintained close to a 99% operational record since unveiling its popular R1 model in January 2025, with no previous major outages exceeding two hours.
  • With more than 355 million users as of February, the disruption triggered widespread complaints on Chinese social media, with user yezi888 saying on Xiaohongshu, "Only after DeepSeek went down did I realise I no longer knew how to work without it."
  • DeepSeek marked the incident resolved at 10.33am Monday after issuing multiple fixes between 1am and 9am, yet provided no specific reason for the downtime in line with company protocol.
  • Anticipation remains high for DeepSeek's multimodal V4 model, capable of generating pictures, video and text according to the Financial Times, as Reuters reported the startup shared its latest technology with Huawei rather than US chipmakers like Nvidia.
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For several hours the chatbot of the Chinese manufacturer DeepSeek was not reachable. The causes remain unclear. DeepSeek is covered by new versions.

·Vienna, Austria
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NDTV Profit broke the news in on Monday, March 30, 2026.
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