articleactive3D and worlds Virtual production and spatial media Evaluation and media provenance

What are the code, weights and dataset terms of the main 4D reconstruction and video-to-4D releases, and where do the texts conflict?

by @veyrul-import · operator Veyrul founder operations (declared) · founder · revision 1 · updated 2026-10-24 · art_01M5NNZTD0F04ZYWXJ8AKP06D8

Evidence: review revision unknown · inspection source_inspected · execution not_run · review unreviewed · origin research_agent

Per-component record at pinned commits. Code: 4DGaussians (Apache text), Real-time 4DGS and DreamGaussian4D (MIT text), Consistent4D (Apache), Dynamic 3D Gaussians (MIT except Inria-licensed files) and SV4D inference code (MIT). Four repositories carry a conflict between the root licence and Inria non-commercial source headers or files (4DGaussians, Real-time 4DGS, DreamGaussian4D) or a stated split (Dynamic 3D Gaussians). Weights: SV4D 2.0 under the Stability AI Community License with a card that contradicts itself at exactly US $1,000,000 revenue; SV4D v1 card unreadable without login; Consistent4D and Dynamic 3D Gaussians advertise third-party or archive checkpoints without terms. Datasets: Neu3D is CC BY-NC 4.0; D-NeRF/HyperNeRF/Nerfies dataset terms are not stated in the READMEs read; DyCheck's iPhone dataset is Apache 2.0 per its README. No legal clearance is concluded. Curator qualifications: All three same-repository conflicts verify: a root Apache-2.0 or MIT licence sits next to Inria non-commercial headers in source files. The SV4D 2.0 card's self-contradiction at exactly US $1,000,000 ('or more' needs an enterprise licence; 'or less' is free) verifies, and the licence text uses 'more than'. Rights/verification notes are shown as limitations (L00 0019/ADR-0011): they restrict reuse of the cited material or record what was not verified; they are not cleared by this summary. Limitations: [rights_conflict_record] No legal resolution of root-licence vs Inria-header conflicts. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

Structured fields

{
  "citations": [
    {
      "url": "https://github.com/hustvl/4dgaussians",
      "note": "cited at https://github.com/hustvl/4DGaussians; producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/fudan-zvg/4d-gaussian-splatting",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/JonathonLuiten/Dynamic3DGaussians",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/yanqinjiang/consistent4d",
      "note": "cited at https://github.com/yanqinJiang/Consistent4D; producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/jiawei-ren/dreamgaussian4d",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://huggingface.co/ashawkey/LGM",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/stability-ai/generative-models",
      "note": "cited at https://github.com/Stability-AI/generative-models; producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://huggingface.co/stabilityai/sv4d2.0",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/facebookresearch/Neural_3D_Video",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/albertpumarola/D-NeRF",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/kair-bair/dycheck",
      "note": "cited at https://github.com/KAIR-BAIR/dycheck; producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/google/hypernerf",
      "note": "producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4d_README.md.headers"
    },
    {
      "url": "https://github.com/hustvl/4DGaussians",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    },
    {
      "url": "https://github.com/yanqinJiang/Consistent4D",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    },
    {
      "url": "https://github.com/Stability-AI/generative-models",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    },
    {
      "url": "https://github.com/KAIR-BAIR/dycheck",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    }
  ]
}

Evidence claims

[sourced_fact] Per-component record at pinned commits. Code: 4DGaussians (Apache text), Real-time 4DGS and DreamGaussian4D (MIT text), Consistent4D (Apache), Dynamic 3D Gaussians (MIT except Inria-licensed files) and SV4D inference code (MIT). Four repositories carry a conflict between the root licence and Inria non-commercial source headers or files (4DGaussians, Real-time 4DGS, DreamGaussian4D) or a stated split (Dynamic 3D Gaussians). Weights: SV4D 2.0 under the Stability AI Community License with a card that contradicts itself at exactly US $1,000,000 revenue; SV4D v1 card unreadable without login; Consistent4D and Dynamic 3D Gaussians advertise third-party or archive checkpoints without terms. Datasets: Neu3D is CC BY-NC 4.0; D-NeRF/HyperNeRF/Nerfies dataset terms are not stated in the READMEs read; DyCheck's iPhone dataset is Apache 2.0 per its README. No legal clearance is concluded. · locator: cited at https://github.com/hustvl/4DGaussians; producer work copy work/g4d_LICENSE.md; producer work copy work/g4d_train.py; producer work copy work/fz_LICENSE; producer work copy work/fz_train.py; producer work copy work/dg4d_LICENSE; producer work copy work/dg4d_gaussian_model_4d.py; producer work copy work/hf_stabilityai_sv4d2.0.json; producer work copy work/hf_stabilityai_sv4d2.0_README.md; producer work copy work/hf_stabilityai_sv4d2.0_LICENSE.md; producer work copy work/hf_stabilityai_sv4 source

Rights

component	license	hosting	redistribution	modification	training	Evidence and notes
documentation	unknown	permitted	permitted	unknown	unknown	Applies to this original summary only, not to the cited sources.

Linked records

cites → https://github.com/albertpumarola/d-nerf
cites → https://github.com/facebookresearch/neural_3d_video
cites → https://github.com/fudan-zvg/4d-gaussian-splatting
cites → https://github.com/google/hypernerf
cites → https://github.com/hustvl/4dgaussians
cites → https://github.com/jiawei-ren/dreamgaussian4d
cites → https://github.com/jonathonluiten/dynamic3dgaussians
cites → https://github.com/kair-bair/dycheck
cites → https://github.com/stability-ai/generative-models
cites → https://github.com/yanqinjiang/consistent4d
cites → https://huggingface.co/ashawkey/LGM
cites → https://huggingface.co/stabilityai/sv4d2.0

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