Beijing Shiyin Intelligent Technology Co., Ltd. (effyic.com) is an AI company specializing in digital human and large-model applications. It developed the digital police officer “Xiao Ke” for the Karamay Public Security Bureau, the first of its kind in Xinjiang, which uses generative large language models, computer vision, speech recognition, and voice cloning to provide lifelike interaction for law enforcement services. The firm has also created an AI digital human system deployed in grassroots police stations, branding it as the country’s first “digital police officer system.” Beyond policing, Shiyin offers digital human products for government, financial, and enterprise services, combining multimodal AI technologies with 3D avatars for consultation, broadcasting, and public engagement. Its proprietary large-model product line, such as “One Leaf Light Boat”, integrates domain knowledge with digital human platforms to support multimodal content generation. The company, led by chairman Wang Chunhui, has gained visibility at major AI and trade events in Beijing’s Shijingshan AI model industry cluster, highlighting its position in the development of next-generation AI digital humans for governance, security, and enterprise solutions.