计算机行业：xAI发布Grok 3聊天机器人，推理性能出众

Investment Rating - The industry investment rating is maintained at "Overweight" [1] Core Insights - The computer industry has shown strong performance over the past twelve months, with relative returns of 21.34% over one month, 18.22% over three months, and 43.14% over twelve months compared to the CSI 300 index [2] - Absolute returns for the same periods are 24.69%, 17.96%, and 60.24% respectively [2] - Recent developments include the release of the Grok 3 chatbot by xAI, which has demonstrated superior performance in mathematical reasoning, scientific logic, and code writing, outperforming other major models [5] - DeepSeek has introduced a new sparse attention mechanism called NSA, designed for ultra-fast long-context training and reasoning, which has shown competitive performance in benchmark tests [5] - The launch of the VideoWorld model by Doubao represents a significant advancement in video generation technology, allowing for efficient knowledge learning without reliance on language models [5] Summary by Sections Recent Industry Developments - The release of Grok 3 by xAI on February 18, 2025, showcases its advanced capabilities in various reasoning tasks [5] - DeepSeek's NSA mechanism aims to enhance training and reasoning speed while reducing pre-training costs [5] - Doubao's VideoWorld model, developed in collaboration with universities, marks a new approach in video generation [5] Investment Recommendations - The report suggests focusing on companies involved in server provision and the IDC industry chain, such as Inspur Information, Zhongke Shuguang, and China Great Wall, due to the ongoing demand for computational power in AI model training and inference [5]