Trellis 2 vs Hunyuan 3.1 and Tripo 3.1: 3D AI comparison

Stef compares Trellis 2 with Hunyuan 3.1 and Tripo 3.1 through examples of buildings, a bench, stylized characters and a sculpture intended for 3D printing. He examines geometry separately from textures, with attention to small details, material appearance and how closely each result follows its reference.

For viewers who want to run models locally, he describes roughly 24 GB of VRAM as a common requirement and mentions an optimized Trellis variant that can run with 6 GB. This is a comparison rather than an installation guide: he generated the examples through Poly AI and points to PixelArtistry's ComfyUI tutorials for low-VRAM setups. He describes Trellis 2 as supporting transparency, up to 1536 resolution and 4K textures.

The open source discussion also covers Hunyuan 2.1 and mesh refiners. UltraShape 1.0 adds detail to existing meshes, while FaithC cleans geometry and adds detail. In the building example, Stef finds that UltraShape produces a cleaner mesh without necessarily preserving more detail than Trellis alone.

Stef generally favors the cloud generators for reference accuracy and usable geometry, though he also finds smoothing, material issues and broken details in their outputs. His conclusion is that Trellis may suit some environment assets or indie projects, while complex printable models can require enough cleanup to make a paid generator preferable. These are judgments from his examples, rather than universal performance results.