Seek .(US:SKLTY) Xin Lang Cai Jing·2026-01-28 02:02Group 1 - The core viewpoint of the news highlights the performance of the AI sector, with the CSI Artificial Intelligence Theme Index (930713) rising by 0.64% and notable gains in constituent stocks such as Tongfang Co., Ltd. (up 9.56%) and Ruixin Microelectronics (up 3.69%) [1] - The AI Artificial Intelligence ETF (512930) increased by 0.54%, with the latest price reported at 2.4 yuan [1] - The DeepSeek team released a paper titled "DeepSeek-OCR 2: Visual Causal Flow" and open-sourced the DeepSeek-OCR 2 model, which utilizes an innovative DeepEncoder V2 method to dynamically rearrange image components based on their meanings, aligning more closely with human visual encoding logic [1] - The new generation open-source model Kimi K2.5 was officially released, achieving the best results globally in several agent evaluations, including HLE, BrowseComp, and DeepSearchQA [1] Group 2 - Haitong International pointed out that the Engram model, developed in collaboration with Peking University, utilizes a hash table mechanism to decouple static knowledge retrieval from the backbone network, allowing for memory calls in O(1) time, thus enhancing deep reasoning focus [2] - Empirical evidence shows that Engram-27B systematically outperforms MoE baselines on benchmarks like MMLU and BBH, particularly excelling in long-context tasks [2] - The CSI Artificial Intelligence Theme Index comprises 50 listed companies involved in providing foundational resources, technology, and application support for artificial intelligence, reflecting the overall performance of AI-themed listed securities [2] - As of December 31, 2025, the top ten weighted stocks in the CSI Artificial Intelligence Theme Index include companies like Zhongji Xuchuang and New Yisheng, collectively accounting for 58.08% of the index [2]