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Hi3D
Open weights that refine rough meshes into detail
- Best for
- Studios with data-center GPUs that want to sharpen coarse AI-generated meshes on their own hardware
- Makes
- High-resolution, untextured 3D geometry refined from a coarse mesh and a reference image
- Made by
- Hi3D (hi3d.ai is operated by Oceano HK Holding Limited)
- Where you use it
- Linux, Web
- Pricing
- Open weights free to download; hosted hi3d.ai has a free trial of 100 lifetime credits and paid plans from $19.90/month billed monthly (US pricing page, as of October 2026)
- Free plan
- Yes
- Open source
- Yes (Hi3D Open License Agreement 1.0)
- Export
- The Python API exports the refined mesh to standard formats such as GLB through trimesh; output is geometry only, recentered and normalized in scale
- Status
- Available
Hi3D v1.0 is an open-weights model, built on the Sparc3D research, that refines a rough 3D mesh into high-resolution geometry. It doesn't generate a model from nothing: you give it a coarse mesh, for example from another image-to-3D tool, plus a reference image of the same object, and it adds detail in up to three passes, reaching a 1536³ sparse grid, according to its Hugging Face model card. A 512 request runs one pass, 1024 runs two and 1536 runs all three.
It suits a staged asset pipeline: generate a quick mesh, sharpen it with Hi3D, then texture it elsewhere, since Hi3D outputs no textures, materials or vertex colors. The model card says output is recentered and normalized, so models need rescaling to fit a scene. It is used from Python (installed from source, with no PyPI package) and exports through trimesh, for example to GLB.
The hardware bar is high. It needs Linux, Python 3.10 and an NVIDIA GPU with compute capability 8.0 or newer, has no CPU path, and its top setting was only validated on a 96 GB NVIDIA H20 card. That makes it a better fit for studios or cloud GPUs than a typical desktop. The license allows commercial use, but products above 200,000 monthly users or $1 million in monthly revenue must apply for a separate license, and commercial integrations must show a "Powered by Hi3D 1.0" credit.
Hi3D also runs a hosted generator at hi3d.ai. As of October 2026, its US pricing page lists a free trial of 100 lifetime credits without commercial use or downloads, and paid plans billed monthly at $19.90, $39.90 and $99.90. AIGamer hasn't tested Hi3D.
Release history
- October 23, 2026: Hi3D v1.0 weights released on Hugging Face, with inference code tagged v1.0 on GitHub (model card, GitHub release)
Plans and pricing
| Plan | Price | What you get |
|---|---|---|
| Free | Free | 100 lifetime trial credits; no commercial use and no 3D model downloads on the hosted service |
| Pro | $19.90/month | 1,000 credits a month, commercial use, unlimited downloads |
| Max | $39.90/month | 4,000 credits a month (shown against a struck-through 2,400) |
| Ultra | $99.90/month | 10,000 credits a month (shown against a struck-through 8,000) |
From Hi3D's own pricing page, checked 29 October 2026. Prices change; check before you buy.
Limitation: It makes geometry only, with no textures or materials, and the top 1536 resolution has only been validated on a 96 GB NVIDIA H20 GPU.
FAQ
Is Hi3D free?
The Hi3D v1.0 weights are free to download from Hugging Face under the Hi3D Open License Agreement 1.0. The hosted hi3d.ai service has a free trial of 100 lifetime credits, but its pricing page says free accounts can't download models or use them commercially; paid plans start at $19.90 a month.
Can Hi3D make textures?
No. The model card says it generates geometry only, with no textures, materials or vertex colors, so you need a separate texturing step.
What GPU do I need to run Hi3D?
An NVIDIA GPU with compute capability 8.0 or newer on Linux. The 1536³ setting has only been validated on a 96 GB NVIDIA H20, and memory needs on smaller cards haven't been established.
Can I use Hi3D commercially?
The model card says commercial use is permitted, with a 'Powered by Hi3D 1.0' credit in commercial integrations and a separate license needed above 200,000 monthly active users or $1 million in monthly revenue. It adds that standalone outputs containing no Hi3D materials don't by themselves trigger those obligations.
Sources
Compiled by AIGamer from Hi3D's own pages and the sources below, checked 29 October 2026. We haven't tested Hi3D hands-on.
- Hi3D: Hi3D v1.0 model card on Hugging Face
- Hi3D: Pricing
- Hi3D: Homepage
- Hi3D: Hi3Dv1.0 inference code (GitHub)
- Hi3D: Hi3D v1.0 release on GitHub
Image: Hugging Face / Hi3D
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