RealVideo - Wisdom Spectrum AI's open source real-time streaming video generation system

What is RealVideo?

RealVideo is an open-source real-time streaming video generation system from Wisdom Spectrum AI that can quickly generate natural and smooth video responses in 2 to 3 seconds. Users simply upload a photo and enter text, and the system generates the corresponding voice and video, realizing real-time conversations with AI characters. The system integrates the GLM-4.5-AirX and GLM-TTS models to generate video frames through an autoregressive diffusion model. It adopts technical optimizations such as sliding-window attention mechanism and dynamic positional coding, which effectively solves the latency and content consistency problems in real-time video generation.RealVideo's open source code and model weights can be viewed on Hugging Face and ModelScope.

RealVideo Features

• Real-time dialog generationThe user uploads a photo and enters text to generate corresponding voice and video, realizing real-time dialog with the AI character, with a first ring delay of only 2 to 3 seconds and smooth interaction.
• Lip Synchronization Technology: Generate precise lip movements in real time based on the generated speech, making the video more natural and realistic.
• Personalization: Users can upload a picture to change their avatar or upload a voice file for voice cloning to meet personalized needs.
• Low Latency Optimization: The techniques such as sliding window attention mechanism and dynamic position coding are used to solve the problem of high latency in traditional video generation models.
• open source and easy to use: The code is well-structured, easy to maintain and extend, and the model weights can be downloaded from Hugging Face and ModelScope.

RealVideo's Core Benefits

• Low Latency Interaction: RealVideo achieves extremely low first-sound latency (only 2 to 3 seconds), enabling users to get almost real-time video response, greatly enhancing the smoothness of interaction and user experience.
• Natural Lip Synchronization: The system can accurately generate lip movements based on the generated speech, so that the mouth shape of the video character matches the speech perfectly, enhancing the realism and naturalness of the video.
• Personalization: Users can easily customize their avatar and voice style by uploading their own photos or voice to meet personalized needs in different scenarios.
• Efficient technical architecture: Advanced techniques such as sliding window attention mechanism and dynamic position coding are used to optimize the performance of the model and solve the delay and content consistency problems in real-time video generation.

What is RealVideo's official website

• Project website:: https://z.ai/blog/realvideo
• GitHub repository:: https://github.com/zai-org/RealVideo
• HuggingFace Model Library:: https://huggingface.co/zai-org/RealVideo

Who RealVideo is for

• content creator: Can be used to quickly generate video content, such as avatar dialogues, animated shorts, etc., to enhance the efficiency of creation.
• Online education practitioners: Personalized virtual teacher profiles can be created to provide students with a more vivid and interactive teaching experience.
• customer service personnel: In the field of customer service, a virtual customer service image can be generated to provide more intuitive and humanized service.
• Virtual Anchor Team: Virtual anchor videos can be quickly generated for newscasts, live bandwagons, and other scenarios.
• Technology Developer: Open source code and model weights facilitate developers to conduct secondary development and explore more application scenarios.
• educational organization: Can be used to develop virtual teaching assistants to aid in teaching and improve student interest and engagement.