South Korea

Chosun Ilbo | English | News | Jan. 23, 2026 | Extreme Weather Events

On January 22, the cold wave in South Korea is expected to peak, marking the coldest day of the winter so far, with Seoul experiencing a morning temperature of minus 13 degrees Celsius and a perceived temperature of minus 19 degrees Celsius. The Korea Meteorological Administration attributes this to a cut-off low-pressure system—a mass of Arctic cold air at minus 35 degrees Celsius—moving southward. Morning temperatures are forecasted between minus 19 and minus 5 degrees Celsius, with daytime highs ranging from minus 7 to 2 degrees Celsius. Strong winds will cause perceived temperatures to be 5 to 10 degrees lower than actual measurements.

Since January, cold waves with temperatures below minus 10 degrees Celsius have become more frequent in Seoul. On the 21st, the city's lowest temperature reached minus 12.2 degrees Celsius, with a perceived temperature of minus 17.9 degrees Celsius. Seoul has had five days this month with temperatures below minus 10 degrees Celsius, and the forecast predicts at least four more such days by the end of January, totaling nine days—roughly one cold wave every three days. Nationwide impacts include frozen seawater observed at Dadaepo Beach in Busan.

Despite global warming leading to milder winters over the past five years, this January has seen an intensification of cold waves due to frequent cut-off low-pressure systems. The weakening jet stream, influenced by global warming, allows Arctic cold air to escape more often. Unlike typical winters dominated by Siberian high-pressure systems at around minus 15 degrees Celsius, this winter has seen more frequent exposure to colder air masses near minus 35 degrees Celsius. Additionally, an unusual persistent high-pressure system east of Korea since January 20 has sustained cold northwesterly winds, prolonging the cold wave. This high-pressure "wall" is expected to maintain the cold conditions for about six days until the weekend.

Joongang Ilbo | English | News | Jan. 23, 2026 | North Korea

President Lee Jae Myung stated during a press conference on January 21, 2026, that while North Korea's denuclearization remains an ideal goal, it is currently unrealistic. He emphasized the urgency of negotiating a nuclear freeze to halt North Korea's rapidly expanding weapons program, which is capable of producing 10 to 20 new nuclear weapons annually. Lee proposed a phased approach starting with a freeze, followed by disarmament, ultimately leading to full denuclearization.

Lee highlighted the risks posed by North Korea's nuclear capabilities, including the potential for regime security and global missile threats. He warned that surplus nuclear material could be exported, endangering global security. Lee has conveyed this message to U.S. President Donald Trump and Chinese President Xi Jinping, advocating a pragmatic negotiation approach that benefits all parties, including North Korea.

In addition to nuclear issues, Lee addressed recent allegations of drone incursions into North Korea, urging a thorough investigation while emphasizing his government's commitment to dialogue and peaceful coexistence on the peninsula. He committed to facilitating North-U.S. talks and restoring the 2018 inter-Korean military agreement to prevent conflict.

Lee also reflected on recent diplomatic engagements with China and Japan, noting progress in Sino-Korean relations and the potential for military and cultural cooperation with China. Regarding Japan, he called for mutual consideration to resolve historical disputes, seeking a path that benefits all parties amid complex international dynamics.

SKT 'A.X K1', 옴니모달로 진화…“소버린 AI 마중물 될 것”

ET News | Local Language | News | Jan. 23, 2026 | UndeterminedTech Development/Adoption

SK Telecom's ultra-large AI model, A.Dot X (A.X) K1, is advancing into an omnimodal model as part of the second phase of its independent AI foundation model project. This upgrade will enable the model to understand and process speech in real time alongside text and images, aiming to establish leadership in sovereign AI. The A.X K1, already a model with approximately 500 billion parameters, will sequentially incorporate multimodal functions, including voice and image recognition.

Professor Kim Geon-hee of Seoul National University highlighted the transition from multimodal models, which integrate text, photos, and videos, to omnimodal models that also include speech understanding. He emphasized the technical difficulty of implementing real-time voice conversations due to their bidirectional and simultaneous nature, requiring the model to handle interruptions, brief feedback, and emotional nuances. Past approaches using separate speech-to-text and text-to-speech systems faced delays and lost key information, such as breathing and emotional signals.

To address these challenges, recent developments focus on integrated language models capable of processing voice information directly. The core strategy involves fine-tuning a powerful pretrained language model using diverse data, including voice, to achieve comprehensive omnimodal capabilities. SK Telecom aims to deploy these advancements across various services like A.Dot, T map, and B tv, and expects the technology to play a central role in enhancing AI applications in gaming and mobility through partners Krafton and 42dot.

Professor Kim stressed that the success of sovereign AI depends heavily on effective use of national core data sovereignty, which includes largely unstructured data in multiple formats. An omnimodal model allows for direct training and operation of such data without relying on external platforms, thus reinforcing both digital sovereignty and sovereignty over physical infrastructure.