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TripoSG

open weights / Overall score: 1.0

TripoSG is VAST's 1.5B-parameter rectified-flow transformer that generates a 3D mesh from a single image, decoding a signed distance field trained on two million curated image-SDF pairs. A distilled TripoSG-scribble variant generates shapes from a sketch and a text prompt for quick prototyping.

The repository's triposg directory carries code derived from Tencent's FlashVDM under Tencent's own community license, beside the MIT root license.

Openness

3 high confidence

3.0

weights: open(TripoSG and TripoSG-scribble download from Hugging Face without a gate)
data: described(the paper and README describe two million curated image-SDF pairs
code: partial(inference scripts only
license: MIT(the weights and the root of the repository

The TripoSG weights are MIT-licensed and download freely, though part of the inference code is derived from Tencent's FlashVDM and carries Tencent's regional license. Only inference code is published and the training data is described but not released.

https://huggingface.co/api/models/VAST-AI/TripoSG?expand[]=downloads&expand[]=likes&expand[]=cardData&expand[]=gated&expand[]=lastModified&expand[]=createdAt recorded 2026-09-26
Hugging Face API record: cardData license mit, gated false.
https://ungh.cc/repos/VAST-AI-Research/TripoSG/files/main recorded 2026-09-26
Repository file list: inference_triposg.py, inference_triposg_scribble.py and inference_vae.py; no training script.
https://ungh.cc/repos/VAST-AI-Research/TripoSG/files/main/LICENSE recorded 2026-09-26
Root LICENSE body: "MIT License / Copyright (c) 2025 VAST-AI-Research and contributors."
https://ungh.cc/repos/VAST-AI-Research/TripoSG/files/main/README.md recorded 2026-09-26
README: "Trained on 2 million meticulously curated Image-SDF pairs"; no dataset release.
https://ungh.cc/repos/VAST-AI-Research/TripoSG/files/main/triposg/LICENSE recorded 2026-09-26
triposg/LICENSE body: "TENCENT HUNYUAN FLASHVDM COMMUNITY LICENSE AGREEMENT".

Adoption

1 high confidence

1.0

Adoption is measured as Hugging Face downloads of the TripoSG and TripoSG-scribble checkpoints.

https://huggingface.co/api/models/VAST-AI/TripoSG-scribble?expand[]=downloads&expand[]=likes&expand[]=cardData&expand[]=gated&expand[]=lastModified&expand[]=createdAt recorded 2026-09-26
Hugging Face API record for VAST-AI/TripoSG-scribble: downloads 85.
https://huggingface.co/api/models/VAST-AI/TripoSG?expand[]=downloads&expand[]=likes&expand[]=cardData&expand[]=gated&expand[]=lastModified&expand[]=createdAt recorded 2026-09-26
Hugging Face API record for VAST-AI/TripoSG: downloads 4986.

Capability

1 medium confidence

1.0

TripoSG is not ranked on the image-to-3D arena's main board for rendered quality, where Hunyuan3D sits in the upper half. It appears only on the arena's mesh-topology board, mid-table.

https://3d-arena-3d-arena.hf.space/api/leaderboard?vote_type=render recorded 2026-09-26
The render board lists 24 models and no "TripoSG" entry.
https://3d-arena-3d-arena.hf.space/api/leaderboard?vote_type=topology recorded 2026-09-26
Topology-board entry "TripoSG" (score 1224, 807 votes).

Verified 2026-09-26