Hunyuan Video

Hunyuan Video is Tencent’s open-source video generation model with 13 billion parameters, making it one of the largest text-to-video models publicly available. It handles both text-to-video and image-to-video generation, producing clips with realistic human motion, consistent physics, and professional camera movements.

The tool supports multiple creative styles — from photorealistic scenes to artistic and animated looks. It can render continuous multi-step actions in a single shot, which sets it apart from many competitors that struggle with action continuity. Audio generation is also built in, adding sound effects that match the visual content.

You can use Hunyuan Video for free through the online studio at hunyuanvideo.org with no installation required. The underlying model is also open-source on GitHub for developers who want to run it locally or integrate it into their own workflows.