Gemma-2-9B-Chinese-Chat is an instruction-tuned language model based on google/gemma-2-9b-it, specifically designed for Chinese and English users. It boasts capabilities such as role-playing and tool usage. Fine-tuned through the ORPO algorithm, the model significantly enhances the accuracy of responses to Chinese queries, minimizes issues with mixed Chinese and English usage, and excels in role-playing, tool usage, and mathematical calculations.