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Hunyuan 2.1

Pro AI 3D Model Generator

Quick Start Guide

1

Upload Reference

Drop your image here. Clean backgrounds and even lighting give the best results.

2

Configure & Generate

Adjust settings like Face Count or Steps if needed, then click Generate.

3

Download Asset

Export your model in .OBJ, .GLB, or .STL format for immediate use.

See What's Possible

Check the Example Gallery on the right to see high-quality inputs and the detailed 3D models they produce.

Main example input
Gallery example 1
Gallery example 2
Gallery example 3

Input Image Best Practices

1

Clean Backgrounds Work Best: Use images with a solid color or transparent background. Busy backgrounds can confuse the AI and create "ghost" geometry.

2

Lighting Matters: Ensure your subject is evenly lit. Strong shadows or overexposed highlights will be baked into the 3D texture.

3

Distinct Angles: An isometric (3/4 view) or a clear front view usually yields the best depth estimation.

4

Avoid Flat Vectors: Pure 2D vectors often result in flat 3D models. Use our AI Image Editor to add depth and realism.

Flat image problem example

Avoid Flat Images

2D vectors lack depth info, causing flat geometry.

Rendered image solution example

Use Depth-Rich Images

Images with shading/texture create volume.

Choose the Right Generator

Hunyuan 2

Hunyuan 2 model generation result example

Hunyuan 2 is suitable for generating simple 3D models. It prioritizes speed and delivers a 3D result at a lower cost.

Hunyuan 2.1

Hunyuan 2.1 model generation result example

Hunyuan 2.1 offers better modeling quality and parameter control. It balances speed and detail, making it ideal for standard assets.

AI3DGen 3

AI3DGen 3 model generation result example

AI3DGen 3 is our high-fidelity model capable of generating realistic textures for complex models, offering the highest quality.

Parameter Cheatsheet

Face Count (Poly Count)

Low (~5k) for mobile/web. High (20k+) for rendering. Controls mesh smoothness.

Generation Steps

Controls refinement. 20 is standard. Higher steps (30-50) improve quality but take longer.

Number of Chunks

Increase this for objects with complex, separated parts (like hair or thin limbs).

Octree Resolution

256 is standard. Use 512 for sharper edges and higher fidelity geometry.

Pro Tips for Generating 3D Models

Don't fear the "Remesh"

If the surface looks rough, try increasing the Octree Resolution and regenerating to smooth out artifacts.

Patience for Quality

Increasing Steps to 30-50 can significantly improve details, though it requires more processing time.

Front vs. Perspective

While 3/4 views are great, a direct Front View often yields the most accurate structural results for this model.

Frequently Asked Questions

Q1.Why are there three different generators?

We offer Hunyuan 2, Hunyuan 2.1, and AI3DGen 3 generators with varying credit costs, allowing you to choose the tier that best matches your required output quality and project budget.

Q2.What's the difference between Hunyuan 2, Hunyuan 2.1, and AI3DGen 3?

Hunyuan 2 is fastest for simple geometry. Hunyuan 2.1 balances speed and quality with advanced parameter controls. AI3DGen 3 delivers the highest fidelity and realistic textures for complex assets.

Q3.Why does my model have an oversized floor?

This happens when the AI interprets shadows or complex backgrounds as part of the object. Please remove the background or use a clean solid color.

Q4.Why is Hunyuan 2.1 slower than Hunyuan 2/Free versions?

The Hunyuan 2.1 model uses complex algorithms to calculate superior mesh topology and high-res textures, which requires more GPU processing time than basic geometry generation.

Q5.Does higher face count cost more with Hunyuan 2.1?

No, the cost is fixed at 40 points per generation. However, higher settings like Face Count and Octree will take longer to generate.

Q6.Can I use these models commercially?

Yes! You fully own the assets you generate with the Hunyuan 2.1 Generator.

Face Count