On June 13, 2025, Tencent launched Hunyuan3D-2.1, an advanced AI-powered system for creating high-quality 3D assets from text descriptions or images in just minutes. With its state-of-the-art technology, Hunyuan3D-2.1 promises to transform industries such as gaming, virtual reality, film production, and architectural visualization.
One of the system’s standout features is its fully open-source framework. Unlike its predecessor, which was more restrictive, Hunyuan3D-2.1 makes both its training code and model weights public. This shift empowers developers, researchers, and creators worldwide to fine-tune and expand the model for diverse, innovative uses, accelerating the growth of AI-driven 3D asset generation across both academic and professional settings.
Another groundbreaking addition is the introduction of Physically-Based Rendering (PBR) texture synthesis. This new pipeline enables photorealistic surface details by simulating light behavior on different materials, such as metallic reflections or fabric textures, supporting up to 4K resolution for lifelike visuals. User feedback indicates a significant leap in texture realism compared to earlier methods.
Hunyuan3D-2.1 also offers a tenfold improvement in geometric precision, delivering highly detailed results even when creating complex models, such as characters or intricate machinery. Benchmark tests show the system outperforming both open- and closed-source competitors in quality and condition adherence.
Ease of use is prioritized through seamless integration with creative tools like ComfyUI, Blender, and a Gradio application, simplifying the 3D creation workflow for both hobbyists and professionals. The system also now supports MacOS, Windows, and Linux, lowering hardware barriers and making advanced 3D generation more accessible than ever.
Despite these advances, Hunyuan3D-2.1 has some limitations. The generated meshes can be quite dense, requiring manual optimization for use in projects like AAA games. There are also regional restrictions for users in certain countries.
Tencent supports the growing Hunyuan3D-2.1 community with active channels and resources, helping users make the most of this revolutionary tool. With these innovations, Hunyuan3D-2.1 makes professional-grade 3D design and creativity available to a wider audience than ever before.