Hunyuan3D vs Trellis 2: picking your open-source 3D engine
Both are free, open-weight and run on your own hardware. They differ in architecture, image-to-3D fidelity, VRAM appetite and how they handle structured output.
The short version
When you graduate from 'free tier' to 'self-hosted', the choice narrows to these two. Tencent's Hunyuan3D 2.5 is the image-to-3D detail benchmark among open weights; Microsoft's Trellis takes a structured-3D approach (SLAT representation) that excels at editable, locally-refined output and runs on Apple Silicon — the pragmatic pick for Mac users. Hunyuan wants NVIDIA muscle; Trellis wants patience. Both output dense meshes that need retopology for production animation.
Pricing and features verified 2026-10 from public vendor pages; vendors change terms — confirm before purchase decisions.
Hunyuan3D vs Trellis 2: the facts that matter
Side by side on the dimensions that actually change your workflow.
| Dimension | Hunyuan3D | Trellis 2 |
|---|---|---|
| Origin | Tencent Hunyuan team | Microsoft Research |
| Approach | Image/text-to-3D diffusion, detail-focused | Structured LAT (SLAT) representation, edit-focused |
| Quality edge | Image-to-3D detail — top of open-source class | Structured, locally editable scenes; strong local refinement |
| Hardware | CUDA GPU, ~10GB+ VRAM comfortable | Runs on Apple Silicon; NVIDIA recommended for speed |
| Setup path | ComfyUI / diffusers, 2-6 hours | Official repo + ComfyUI nodes, comparable effort |
| License | Open, commercial use permitted | Open (MIT-licensed code; check model weights terms) |
| Best for | Maximum single-asset fidelity | Editable scenes and non-NVIDIA hardware |
The honest verdict
Hunyuan for detail, Trellis for Macs and editability. NVIDIA GPU and single-asset fidelity goals: Hunyuan3D. Apple Silicon or structured-edit workflows: Trellis 2. Both free; the cost is your hardware and weekend.
Pick Hunyuan3D if…
- Image-to-3D detail is the metric you care about
- You have a 10GB+ CUDA GPU
- You want the larger community and ComfyUI ecosystem
Pick Trellis 2 if…
- You are on Apple Silicon without an NVIDIA box
- Local editing and structured scene output matters
- You prefer MIT-licensed tooling
Pick 3dai if…
- You want Hunyuan-class output with zero setup — 3dai serves it in the browser, free credits, conversion and compression attached
Skip the subscription decision entirely
Generate text-to-3D or image-to-3D with free credits, export GLB or STL, compress and preview it — all in one browser tab before you commit to any paid plan.
Skip the setup — generate freeHunyuan3D vs Trellis 2 — FAQ
Which open-source model produces better 3D quality?+
For single-object image-to-3D detail, Hunyuan3D 2.5 currently benchmarks ahead of Trellis 2 in community tests. Trellis counters with structured output that is easier to edit locally and strong scene-level generation. 'Better' therefore depends on whether you consume assets whole (Hunyuan) or edit them (Trellis).
Can Trellis 2 run on a Mac?+
Yes — Trellis 2 is the notable open-source option that runs on Apple Silicon, though slower than NVIDIA GPUs. Hunyuan3D targets CUDA and is impractical on macOS without significant workarounds.
Are both really free for commercial use?+
Hunyuan3D's license permits commercial use of outputs. Trellis's code is MIT-licensed; as with any open model, verify the current weights license terms before shipping commercial work — model and code licenses can differ.
Do I need to self-host to use either?+
No — hosted services front both classes of models. 3dai, for example, runs Hunyuan-class generation in the browser with free credits, so you get the quality without the GPU, plus GLB/STL conversion and compression in the same tab.
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