On July 7, Chinese tech company DataGrand unveiled an advanced language model called Cao Zhi at the World Artificial Intelligence Conference. This domestically produced language model stands out for its remarkable ability to handle lengthy texts, specialization, and process multiple languages. Cao Zhi leverages a combination of diverse models and knowledge graphs, enabling it to support tasks such as multi-language long text composition and translation. Its capabilities extend to several applications such as detailed text writing, machine translation, semantic analysis, answering knowledge-based questions, and converting text-to-SQL. Furthermore, it can undergo rigorous optimization and personalized customization to meet the unique content creation needs of various industries and domains. [Kuaikeji, in Chinese]