DeepSeek will fully open-source its internal inference framework DeepInfer. DeepInfer underpins DeepSeek V4.1 Flash, a high-throughput, low-latency large-scale inference service. DeepSeek said new model inference code and subsequent optimizations will be released and updated continuously.

Japan finance minister Katayama said Tokyo will factor fiscal sustainability into plans to raise funds for expanded defense spending, responding to local media reports that the government is weighing a corporate tax increase to help finance the buildup. Katayama said ministries are holding pragmatic, detailed discussions on required defense capabilities and attendant spending levels, and that any funding measures will be chosen with fiscal sustainability in mind and to ensure stable funding sources.

據中國海事局網站消息，汕尾海事局發佈航行警告，10月20日至10月23日，每天8時至12時，南海部分海域進行軍事訓練，禁止駛入。​​​