Hunyuan3D-2
Tencent's open 3D generator — multi-view, PBR, ready-to-use meshes.
Open Source 12–16 GB VRAM
- Min VRAM
- 12 GB
- GPU class
- High-end GPU
- Quant
- FP16
Actually FreeOpen SourceWatermark-FreeAPI
TRELLIS
Microsoft Research's structured 3D representation model.
Open Source 16–24 GB VRAMRuns locally
Actually FreeNo SignupOpen SourceWatermark-Free
Visit TRELLISUpdated 2026-04-02 · Direct link
Hardware requirements
Runs locally · High-end GPU (16–24 GB)
Min VRAM
16 GB
Rec. VRAM
24 GB
Min RAM
32 GB
Rec. RAM
64 GB
Disk
30 GB
GPU class
High-end GPU
12.1+No Apple SiliconGPU RequiredQuant: FP16
Image-to-3D fits 16 GB; text-to-3D wants 24 GB.
Screenshot placeholder · TRELLIS
What is TRELLIS?
TRELLIS uses a novel 'structured latent' representation — joint sparse-voxel + feature-grid — to generate high-quality 3D assets (mesh + Gaussian splat + radiance field) from images or text. MIT license, image-to-3D and text-to-3D pipelines.
Pros & cons
Pros
- Outputs mesh + Gaussian splat + radiance field in one shot
- MIT licensed
- Microsoft Research backing — solid engineering
Cons
- Heavier than Hunyuan3D-2 at equivalent quality
- Texture quality below dedicated PBR pipelines
What's actually free?
MIT.
✓ Actually FreeNo SignupOpen SourceWatermark-Free
Alternatives
TripoSR
Single-image to 3D mesh in under a second on a 4090.
Open Source 6–8 GB VRAM
- Min VRAM
- 6 GB
- GPU class
- Entry GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free
Stable Zero123
Novel-view synthesis — generate any angle from a single image.
Open Source 6–8 GB VRAM
- Min VRAM
- 6 GB
- GPU class
- Entry GPU
- Quant
- FP16
Actually FreeOpen SourceWatermark-FreeHobbyist-Friendly