Beijing Mengke Technology Co., Ltd. (北京萌科科技有限公司) is a Beijing-based national high-tech enterprise and specialized innovation firm that develops the GKK software platform and associated .GKK file format to enable the creation and deployment of AI-driven digital humans within 3D metaverse environments. The company’s technology integrates artificial intelligence agents with virtual reality (VR), augmented reality (AR), mixed reality (MR) and extended reality (XR) to support interactive multi-digital-human applications across education, cultural tourism and exhibition contexts, allowing static course materials such as PPT or PDF files to be transformed into interactive digital-human-led presentations and immersive learning experiences, with cloud-based content upload, real-time dialogue, and customizable digital human presence within metaverse-style spaces.