Hunyuan3D
Tencent's AI 3D generator with open weights for self hosting and a commercial cloud API, strongest on hard surface geometry.
Tripo
AI 3D workspace by VAST that generates textured, riggable models from text, images or sketches in seconds.
AI 3D Generation Freemium
Overview
Tripo is a browser based AI 3D workspace developed by VAST, a 3D generative AI company founded in 2023 with headquarters in San Francisco and Beijing. It generates 3D models from text prompts, single or multi view images and sketches, and its defining trait versus rivals is speed with clean geometry: the Smart Mesh pipeline outputs quad dominant, game ready topology in seconds rather than the triangulated meshes AI generators are known for. In a pipeline it sits at the front of asset creation, drafting geometry that artists then finish in tools like Blender or a game engine. VAST also open sourced the TripoSR model with Stability AI for local generation, and raised roughly USD 350 million across Series A rounds in mid 2026 to fund its world model roadmap.
Key features
Smart Mesh quad topology
The Smart Mesh P1.0 pipeline generates organised, quad dominant low poly meshes natively in roughly 2 to 10 seconds, with parametric face counts from 500 to 20,000. It targets the biggest weakness of AI generators: unusable triangulated topology.
HD generation up to 2M polygons
A separate HD Model H3.1 workflow pushes density to around two million polygons for hero assets, organic characters and 3D printing, prioritising sharp silhouettes over lightweight topology.
8K PBR texturing and Magic Brush
Generates PBR materials with BaseColor up to 8192x8192 plus normal and ORM maps, added in June 2026. An interactive Magic Brush repaints specific areas without touching the geometry.
Smart part segmentation
Automatically splits fused generations into separate editable components, so a generated vehicle's wheels can be detached from the chassis for individual animation or printing.
Auto-rigging beyond humanoids
Attaches a clean T pose skeleton with weight painting automatically, covering quadrupeds and multi legged creatures as well as bipeds, with rigs compatible with Mixamo animation libraries.
Open API, DCC plugins and TripoSR
Pay as you go API from USD 0.01 per credit, official plugins for Blender, Unity, Unreal, Godot, Cocos and ComfyUI, plus TripoSR, an MIT licensed open source model for local single image 3D generation.
Pros and cons
What users consistently praise
- Fastest generation in its class: standard low poly output in roughly 2 to 10 seconds
- Smart Mesh quad topology drastically cuts manual retopology versus typical AI generator output
- API is genuinely accessible, pay as you go from about USD 0.10 to 0.30 per asset with no tier gate
- TripoSR gives a free, MIT licensed local option for basic single image generation
What users consistently criticise
- Organic geometry such as faces and hands often degrades and behaves badly when rigged without manual fixes
- Credits are charged per attempt regardless of output quality, and failed prompts give little diagnostic feedback
- Default AI textures can look flat or muddy next to Meshy and Rodin, pushing artists to external texturing tools
- Free tier results are public CC BY 4.0 with a 15 download monthly cap, and there is no student discount tier
Recurring themes across third-party user reviews (G2, Capterra, TrustRadius).
Videos
Pricing
| Plan | Price | What you get |
|---|---|---|
| Free | USD 0 | 200 credits per month (roughly 8 basic models), 15 downloads per month. Results are public under CC BY 4.0 and cannot be used commercially. |
| Pro | USD 19.90/month | USD 13.93/month billed yearly. 3,000 credits, Smart Mesh, multi view input, batch generation, private models and full commercial rights. |
| Max | USD 89.90/month | USD 53.94/month billed yearly. 25,000 credits, 100 concurrent tasks, dedicated processing and unlimited retries. |
| Team | USD 109.90/seat/month | USD 54.93/seat/month billed yearly. 45,000 credits per seat with shared workspaces and central billing. |
| API | USD 0.01/credit | Prepaid pay as you go. A standard generation runs about 10 to 30 credits; rigging, segmentation and refinement bill extra credits per task. |
Best for
Indie game and UGC developers
Quad dominant meshes at strict polygon budgets suit Unity, Godot and Roblox work, and official engine plugins import results without manual file juggling.
Rapid blockouts and previz
Generation in seconds makes it practical to populate a scene with placeholders while exploring scale, lighting and composition.
3D printing makers
Watertight output logic plus direct STL and 3MF export feed straight into slicers like Bambu Studio and Cura.
Developers building on an API
API access starts at pay as you go rates from onboarding, unlike rivals that gate their APIs behind higher tiers.
Who should look elsewhere
AAA cinematic character work
Generated topology, even quad dominant, lacks the deliberate edge loops facial morph targets and close up deformation demand, so hero characters still need manual retopology.
Out of the box texture perfectionists
Reviewers consistently find Tripo's default textures flatter and less photoreal than Meshy or Rodin output, often finishing assets in Substance Painter.
Users expecting full automation
Inverted normals, overlapping UVs and rig tweaks still happen. The tool accelerates people who know 3D basics; it does not replace that knowledge.
Frequently asked questions
Can I use Tripo models commercially?
On paid plans (Pro and above) yes, with private ownership and royalty free commercial rights. Free tier results are published publicly under CC BY 4.0, which requires attribution and bars them from commercial, monetised projects.
Are Tripo models ready for 3D printing?
Mostly. Tripo aims for manifold, watertight output and exports STL and 3MF directly for slicers, but complex organic generations can still contain small non manifold edges, so a quick check in mesh repair software before printing is wise.
What is the difference between Smart Mesh and HD generation?
Smart Mesh outputs low poly, quad dominant topology (500 to 20,000 faces) in seconds for games and AR. HD mode generates up to about two million polygons for hero assets and printing, trading speed and file weight for detail.
Should I use the Tripo API or run TripoSR locally?
The cloud API costs roughly USD 0.10 to 0.30 per completed asset with zero setup. TripoSR is free and MIT licensed but only covers basic single image reconstruction and needs a capable NVIDIA GPU (roughly 12 GB VRAM) plus comfort with local Python tooling.
Why did my generation waste credits?
Tripo charges credits per generation attempt regardless of quality, and AI generation is probabilistic. Iterating on a difficult prompt can burn through a monthly quota, which is the most common billing complaint in user reviews.
What formats does Tripo export?
GLB by default, plus FBX (with skeleton data), OBJ, USD/USDZ, and STL or 3MF for 3D printing.
Latest official news
Alternatives to Tripo
See all AI 3D Generation ›
Meshy
AI 3D model generator that turns text prompts or images into textured, riggable meshes in about a minute.
Rodin (Hyper3D)
Deemos' AI 3D generator focused on high resolution quad geometry and PBR textures from text or multi image input.