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When Did TRELLIS 2 Come Out? Release Date & Timeline (2026)
2026/05/04
5 min read

When Did TRELLIS 2 Come Out? Release Date & Timeline (2026)

Microsoft TRELLIS 2 was released on December 16, 2025. Complete timeline from paper publication to Hugging Face release, with key milestones and the difference from TRELLIS v1.

Last updated: May 4, 2026

Microsoft TRELLIS 2 was officially released on December 16, 2025, when the research paper "Native and Compact Structured Latents for 3D Generation" was published on arXiv (ID: 2512.14692). The model weights appeared on Hugging Face two weeks earlier on November 30, 2025.

Here's the complete timeline from the original TRELLIS to the current version.

TRELLIS 2 Release Timeline

Date
Milestone
Details
Nov 30, 2025Hugging Face model uploadFirst commit to microsoft/TRELLIS.2-4B
Dec 16, 2025arXiv paper published"Native and Compact Structured Latents for 3D Generation" — arXiv:2512.14692
Dec 18, 2025GitHub repository activeCode and ComfyUI integration available at github.com/microsoft/TRELLIS.2
Dec 22, 2025Additional model files uploadedSupplementary weights and documentation added to Hugging Face
Dec 2025Project page launchedmicrosoft.github.io/TRELLIS.2 goes live with examples and technical details

TRELLIS v1 Timeline (For Reference)

DateMilestoneDetails
Dec 2, 2024arXiv paper published"Structured 3D Latents for Scalable and Versatile 3D Generation" — arXiv:2412.01506
Dec 2, 2024GitHub + Hugging Face releaseCode and model weights made public simultaneously
Mar 25, 2025Training code releasedText-to-3D model training code added to repository
Jun 10, 2025CVPR 2025 SpotlightAccepted as a Spotlight paper at CVPR 2025
Sep 2, 2025NVIDIA NIM integrationAvailable on NVIDIA Build

How Long Between TRELLIS v1 and TRELLIS 2?

The two versions were released approximately 12 months apart:

TRELLIS v1TRELLIS 2Gap
arXiv paperDec 2, 2024Dec 16, 202512 months, 14 days
Hugging FaceDec 2, 2024Nov 30, 202511 months, 28 days

Key Differences Between Versions

TRELLIS 2 represents a significant architectural leap over v1:

FeatureTRELLIS v1TRELLIS 2
ParametersMulti-scale (unspecified)4 billion (4B)
3D RepresentationSLAT (Structured Latents)O-Voxel (field-free sparse voxel)
Max Resolution~512³512³ to 1536³
MaterialsBasic color onlyFull PBR (Base Color, Roughness, Metallic, Opacity)
TopologyLimitedArbitrary topology (open surfaces, non-manifold geometry)
Generation Speed—512³: ~3s, 1024³: ~17s, 1536³: ~60s (H100)
LicenseMITMIT

Who Created TRELLIS 2?

TRELLIS 2 was developed by Microsoft Research. The project is led by researchers from Microsoft's 3D generation team. Key details:

  • Organization: Microsoft Research
  • License: MIT (fully open source)
  • Repository: github.com/microsoft/TRELLIS.2
  • Model weights: huggingface.co/microsoft/TRELLIS.2-4B

The project was featured in the Microsoft Research 2025 Year in Review.

What Made TRELLIS 2 Significant?

TRELLIS 2 introduced several innovations that advanced the field of AI 3D generation:

O-Voxel Representation

The new "field-free sparse voxel" representation eliminates the need for implicit neural fields. This makes the 3D representation more compact and efficient while supporting arbitrary topology — including open surfaces and non-manifold geometry that previous methods struggled with.

Native PBR Output

Unlike v1 which only produced basic color textures, TRELLIS 2 natively generates full PBR (Physically Based Rendering) material maps. This means the output includes separate textures for base color, roughness, metallic properties, and opacity — ready for game engines and rendering software without additional processing.

SC-VAE Compression

The Structured Compact VAE achieves 16x spatial compression, enabling the model to work with high-resolution 3D data while keeping memory requirements manageable. This is what makes generation in ~3 seconds possible.

Community Reception

TRELLIS 2 generated significant interest in the AI and 3D communities:

  • Reddit: Extensive discussion on r/LocalLLaMA with users praising the quality and speed improvements
  • ComfyUI integration: Rapid community adoption led to custom nodes and workflows
  • Third-party platforms: Multiple services (fal.ai, Replicate, 3D AI Studio) quickly integrated TRELLIS 2 into their offerings

How to Try TRELLIS 2 Today

Since its release, several ways to use TRELLIS 2 have become available:

MethodCostSetup TimeBest For
Hugging Face SpaceFree0 minutesQuick generation
Local installationFree (needs GPU)2-4 hoursUnlimited offline use
ComfyUIFree (needs GPU)1-2 hoursCustom workflows
Replicate~$0.82/gen0 minutesMaximum quality (1536³)

For a complete guide on using TRELLIS 2 without a GPU, see How to Use TRELLIS 2 Online Free.

FAQ

When was TRELLIS 2 released?

TRELLIS 2 was released on December 16, 2025, when the research paper was published on arXiv. Model weights were available on Hugging Face from November 30, 2025.

When was TRELLIS v1 released?

TRELLIS v1 was released on December 2, 2024. It was later accepted as a Spotlight paper at CVPR 2025.

Is TRELLIS 2 open source?

Yes. TRELLIS 2 is released under the MIT license. The source code is available on GitHub and model weights on Hugging Face.

What's new in TRELLIS 2 compared to v1?

TRELLIS 2 introduces a new O-Voxel 3D representation, native PBR texture output, support for arbitrary topology, and higher resolution (up to 1536³). It also uses a 4-billion parameter architecture with SC-VAE for 16x spatial compression.

Can I use TRELLIS 2 commercially?

Yes. The MIT license permits commercial use of the model and its outputs.

Related articles:

  • What is TRELLIS 3D? — overview of the TRELLIS AI model
  • How Does TRELLIS 2 Work? — deep dive into the technical architecture
  • How to Use TRELLIS 2 Online Free — no GPU needed
  • How to Install TRELLIS 2 — local setup guide
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TRELLIS 2 Release TimelineTRELLIS v1 Timeline (For Reference)How Long Between TRELLIS v1 and TRELLIS 2?Key Differences Between VersionsWho Created TRELLIS 2?What Made TRELLIS 2 Significant?O-Voxel RepresentationNative PBR OutputSC-VAE CompressionCommunity ReceptionHow to Try TRELLIS 2 TodayFAQWhen was TRELLIS 2 released?When was TRELLIS v1 released?Is TRELLIS 2 open source?What's new in TRELLIS 2 compared to v1?Can I use TRELLIS 2 commercially?

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