Head-to-head · same block-out
Rodin Gen-2.5 Fast vs Tripo 3.1
Both engines got the same blocks in the same art style, at their default settings. Here is what each one returned, measured from the files themselves.
At a glance
| Rodin Gen-2.5 Fast | Tripo 3.1 | |
|---|---|---|
| Maker | Hyper3D (Deemos) | VAST (Tripo AI) |
| Takes | Images without view labels | 4 labelled views |
| Formats it returns | GLB | GLB · OBJ · FBX |
| Texture maps | Base colour · Normal · Roughness-metal (4K) | Base colour · Normal · Roughness-metal (2K) |
| Rigs characters itself | No | Yes |
| Open weights | No | No |
| Run through | fal.ai | Tripo API |
| In Vox Land | Pick it in the pro workspace | Tiers 8, 9, 11, 12 · from 22 credits |
Test: T-posed character
839 blocks, cartoon style: a young man in a blue T-shirt, dark grey trousers and black boots. The T-pose shows whether an engine textures both arms.
| Rodin Gen-2.5 Fast | Tripo 3.1 | |
|---|---|---|
| Triangles | 9,380 | 18,846 |
| File size | 2.5 MB | 2.7 MB |
| Texture maps | Base colour · Normal · Roughness-metal (4K) | Base colour · Normal · Roughness-metal (2K) |
| Outline match | 77% front 94% · side 74% · top 62% | 63% front 87% · side 65% · top 37% |
| Job time | 47 s | 140 s |
| Art style | Cartoon | Cartoon |
| Settings | defaults | defaults |
| Generated | Sep 23, 2026 | Sep 23, 2026 |
Test: Pickup truck
1,896 blocks, comic style: a chunky stylised pickup. The test for hard surfaces, flat panels and wheels.
| Rodin Gen-2.5 Fast | Tripo 3.1 | |
|---|---|---|
| Triangles | 9,664 | 18,241 |
| File size | 6.6 MB | 6.0 MB |
| Texture maps | Base colour · Normal · Roughness-metal (4K) | Base colour · Normal · Roughness-metal (2K) |
| Outline match | 70% front 59% · side 75% · top 76% | 60% front 46% · side 70% · top 64% |
| Job time | 59 s | 183 s |
| Art style | Comic | Comic |
| Settings | defaults | defaults |
| Generated | Sep 23, 2026 | Sep 23, 2026 |
Test: Castle gate
4,518 blocks, realistic style: a stone gatehouse with two towers, battlements, a portcullis, banners and a drawbridge on chains. The test for a large building with thin parts and repeated detail.
| Rodin Gen-2.5 Fast | Tripo 3.1 | |
|---|---|---|
| Triangles | 9,468 | 18,280 |
| File size | 10.1 MB | 5.3 MB |
| Texture maps | Base colour · Normal · Roughness-metal (4K) | Base colour · Normal · Roughness-metal (2K) |
| Outline match | 89% front 92% · side 88% · top 87% | 81% front 81% · side 80% · top 84% |
| Job time | 68 s | 207 s |
| Art style | Realistic | Realistic |
| Settings | defaults | defaults |
| Generated | Sep 23, 2026 | Sep 23, 2026 |
Which one to pick
Pick Rodin Gen-2.5 Fast for quick drafts and background assets that still need a full PBR material.
- fewer triangles (9,380 vs 18,846): less to decimate
- kept closer to the block-out's outline (77% vs 63%)
- quicker job (47 s vs 140 s)
Pick Tripo 3.1 for game-ready characters and creatures: light files, a full PBR set, native rigging.
- more geometry (18,846 vs 9,380 triangles)
- returns OBJ / FBX itself
- can rig and animate characters itself
- reads the views as labelled front / side / back
- can also build from a text prompt alone
Quick answers
- Which gives smaller files, Rodin Gen-2.5 Fast or Tripo 3.1?
- Rodin Gen-2.5 Fast: 2.5 MB against 2.7 MB on the T-posed character (9,380 vs 18,846 triangles).
- Which follows the input shape more closely?
- Rodin Gen-2.5 Fast kept more of the block-out's outline on the T-posed character: 77% overlap against 63%.
- Do they give PBR texture maps?
- Both returned base colour, normal and roughness-metal maps in our runs.
- Which one is faster?
- In our run on the T-posed character, the Rodin Gen-2.5 Fast job took 47 s and the Tripo 3.1 job 140 s, both from the same finished views. One run each: treat it as a rough guide.
- Can I get OBJ or FBX?
- Tripo 3.1 returns OBJ / FBX itself; Rodin Gen-2.5 Fast returns GLB only. In Vox Land, every model can also be exported as OBJ from the GLB.
- Can either one rig a character?
- Tripo 3.1 can rig and animate a character on its own side (a paid add-on). In Vox Land, any character can also be rigged from the part tags on your blocks, whichever engine made it.
More comparisons
Hitem3D 2.1 vs Rodin Gen-2.5 FastHitem3D 2.1 vs Tripo 3.1Hunyuan3D 2 vs Rodin Gen-2.5 FastHunyuan3D 2 vs Tripo 3.1Hunyuan3D 3.1 Pro vs Rodin Gen-2.5 FastHunyuan3D 3.1 Pro vs Tripo 3.1Hunyuan3D 3 vs Rodin Gen-2.5 FastHunyuan3D 3 vs Tripo 3.1Meshy-7 vs Rodin Gen-2.5 FastMeshy-7 vs Tripo 3.1ReconViaGen 0.5 vs Rodin Gen-2.5 FastReconViaGen 0.5 vs Tripo 3.1Rodin Gen-2.5 Fast vs TRELLIS 2Rodin Gen-2.5 Fast vs TRELLIS (multi-view)Rodin Gen-2.5 Fast vs Tripo P1Rodin Gen-2.5 vs Rodin Gen-2.5 FastRodin Gen-2.5 vs Tripo 3.1Rodin Gen-2 vs Rodin Gen-2.5 FastRodin Gen-2 vs Tripo 3.1TRELLIS 2 vs Tripo 3.1TRELLIS (multi-view) vs Tripo 3.1Tripo 3.1 vs Tripo P1
How we test
- 1Same pictures. Within a test, an image model repaints the block views once (the way Vox Land always works), and that one set of views goes to every engine, at its default settings; the table lists any that differ. Engines that take a single picture get one three-quarter view, painted from the same blocks in the same style.
- 2So every difference inside a test comes from the engine, not from the input. The blocks fix the shape and the proportions; the repainted views add the colours and small details every engine then shares.
- 3Numbers are read from the file each engine delivered: triangles, file size, texture maps. Job time is the engine's job in our pipeline (the views were painted beforehand), from a single run.
- 4Outline match: we draw the block-out and the model as flat silhouettes from the front, the side and above, and measure how much they overlap (intersection over union; 100% means identical outlines).
- 5The renders are ours: the same camera, light and orientation for every file.
- 6We make none of these engines. Vox Land sends your blocks to whichever one you pick, so we have no reason to favour one.
Try them on your own blocks
Build a block-out in the browser and send it to any of these engines. New accounts get 15 free credits.
Data updated Sep 23, 2026