DeepSeek Services Hit by Partial Outages
Web chat and two APIs were partially interrupted early Tuesday, 19 days after a major outage, with no cause announced yet.
Updated on Nov. 3, 2026 in Artificial Intelligence
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DeepSeek's web chat and its V4 Pro and V4.1 Flash APIs experienced partial outages beginning at 3:58 a.m. ET on November 3, 2026, which DeepSeek marked as partial at 4:06 a.m. ET. The company is investigating and has not announced a cause.
Why it matters
The disruption follows a major outage on October 15 that affected the same three services, raising questions about service stability for users relying on DeepSeek's chat and API offerings. Both incidents come after DeepSeek consolidated its chat modes and reduced its API lineup in September.
DeepSeek's status disclosures mark all three November 3 interruptions as partial, with the October 15 outage lasting nearly five hours for comparison. The root cause of the current disruption has not been disclosed and remains under investigation.
The players
DeepSeek
DeepSeek is an artificial intelligence company that operates the web chat service and the V4 Pro and V4.1 Flash APIs affected by the outages.
The details
Three services were affected: web chat, the V4 Pro API, and the V4.1 Flash API. DeepSeek apologized for the October 15 outage and granted API users credits equal to their spending over the previous seven days.
Timeline
September: DeepSeek consolidated its three chat modes into V4.1 Flash and reduced its API lineup to V4.1 Flash and V4 Pro.
October 15: A major outage affecting the same three services lasted nearly five hours.
November 3, 3:58 a.m. ET: Partial outages began; DeepSeek marked them as partial at 4:06 a.m. ET.
Roadmap
DeepSeek's September consolidation of its three chat modes into V4.1 Flash and its reduction of the API lineup to V4.1 Flash and V4 Pro reshaped the services now experiencing repeated disruption. The October 15 and November 3 outages both hit this consolidated set of offerings within weeks of the restructuring.
Users relying on DeepSeek's web chat or its V4 Pro and V4.1 Flash APIs may experience interruptions in service during the investigation. API users who spent money in the previous seven days are credited that amount following the earlier outage.
The takeaway
Developers and everyday users who depend on AI services should monitor provider status pages and consider backup options when service reliability is uncertain. Repeated disruptions within a short window can signal ongoing infrastructure strain worth watching.
Further reading
Follow the latest developments in Artificial Intelligence coverage for more context on AI service reliability.
Source note: This article includes information reported by TokenPost.
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