Hunyuan3D 2.1
Description
Hunyuan3D 2.1 is an open system from Tencent for creating 3D assets from an image. It has two parts: a shape model with 3.3 billion parameters that builds an untextured 3D shape, and a texture model with 2 billion parameters that adds PBR materials, for example metallic reflections. The repository does not describe text input. The authors give about 10 GB of VRAM for shape, 21 GB for texture and 29 GB for both. It was released in June 2025. The weights are published under the Tencent Hunyuan 3D 2.1 Community License, not a standard open license: it is valid only in some regions (the full list is in the license text), requires a separate license from Tencent above 1 million monthly active users, and forbids using the model or its results to improve other AI models. An official demo is on Hugging Face.
Pros and cons
Pros
- Shape and PBR materials in one system
- Weights and training code are published
- Official demo on Hugging Face
Cons
- Custom license with regional and audience limits
- Needs about 29 GB of VRAM for the full pipeline
- Image input only, no text input described
Key facts
- License
- Tencent Hunyuan 3D 2.1 Community License
- Commercial use
- Allowed with restrictions
- Hardware requirements
- About 10 GB of VRAM for shape, 21 GB for texture, 29 GB for both (per the authors)
- Developer
- Tencent
- Checked on
- Oct 20, 2026