I九思：用大语言模型焕新古汉语之美

 [Purpose/Significance] With the rapid development of Generative Artificial Intelligence (AIGC), large language models have demonstrated powerful language understanding and generation capabilities in general domains. However, they still face many limitations in the field of ancient Chinese processing. To address this challenge, Huazhong University of Science and Technology has developed the "AI Jiusi," a large language model for cognition of ancient Chinese, aiming to enhance the professional capabilities of LLM in knowledge question-answering and comprehension applications related to ancient Chinese. [Method/Process] This paper provides a detailed introduction to the research and development background, dataset construction, model training process, and performance in terms of ancient Chinese language knowledge and linguistic ability of "AI Jiusi." [Results/Conclusions] Based on internal testing feedback, "AI Jiusi" has shown significant advantages in professional question-answering and comprehension application tasks related to ancient Chinese, although there are areas that need improvement. In the future, the team plans to further enhance the text cognition and multimodal application capabilities of "AI Jiusi," optimize user interaction experience, and promote the development of LLMs for ancient Chinese to a higher level, facilitating the transition of ancient Chinese research into the digital and intelligent phase.