Hunyuan 3D v3.1 Rapid Text to 3D API

hunyuan-3d/v3.1/rapid/text-to-3d

Hunyuan 3D v3.1 Rapid Text to 3D turns short object descriptions into 3D assets with geometry and PBR material controls. Focus the prompt on the subject and its defining shapes, then choose a white model or textured result.

Input
Required

168 / 200 characters

Optional
Optional

Geometry mode takes precedence. Your PBR selection is retained for textured mode.

OutputModel ready
Loading 3D preview…
Current cost: 36 credits
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Hunyuan 3D v3.1 Rapid Text to 3D

Hunyuan 3D v3.1 Rapid Text to 3D is a Tencent model that turns concise object descriptions into 3D assets. A prompt of up to 200 characters guides the subject, shape, and materials, while geometry and PBR settings determine the output mode. Use this compact workflow for early prop concepts, silhouette studies, and preparing objects for review in a 3D scene.

Why Choose Hunyuan 3D v3.1 Rapid Text to 3D?

  • Start with a compact descriptionDescribe the object and its defining features in a prompt of up to 200 characters.

  • Inspect the silhouette firstEnable geometry mode to generate a white model for reviewing the overall shape and main parts.

  • Add material generationUse textured mode with PBR enabled to request materials for the generated object.

Generation Parameters

ParameterRequirementWhat it controls
promptRequired

Describe the object, shape, and materials in 1–200 characters.

enable_geometryOptional

Set true for a geometry-only white model or false for textured generation.

enable_pbrOptional

Set true to generate PBR materials in textured mode. Geometry mode takes precedence.

How to Use

  1. Prepare your inputDescribe the object in Prompt.

  2. Choose geometry and materialsChoose Enable Geometry and Enable Pbr for geometry or textured output.

  3. Submit the generationReview the current cost and select Run. Follow the task in the output panel.

  4. Inspect and downloadPreview the returned 3D model and download the model, textures, and companion files.

Pricing

Base generation costs $0.180. PBR in textured mode adds $0.120; geometry mode uses the base rate.

GenerationCostBilling unit
Base generation$0.180 · 36 creditsPer generation
PBR materials+$0.120 · 24 creditsPBR enabled in textured mode

Best Use Cases

  • Prop concept reviewCompare shapes and parts from object descriptions to choose a direction for further work.

  • Product visualization preparationInspect the model and materials while preparing a presentation scene in your 3D application.

  • Scene asset editingDownload returned assets for further work on scale, placement, and surface appearance.

Pro Tips

  • Start with the subject and defining shapes, then add material details.
  • Use geometry mode to concentrate on shape review.
  • Use textured mode and PBR settings to inspect material direction.
  • Change one input detail at a time to compare generated results.

Output Files

  • Use returned label, format, and file_type values to identify model, preview, texture, and material files.

Hunyuan 3D v3.1 Rapid Text to 3D API frequently asked questions

What is the Hunyuan 3D v3.1 Rapid Text to 3D API?

Hunyuan 3D v3.1 Rapid Text to 3D is a Tencent model for generating 3D objects from written descriptions. Describe the object and its defining features in a prompt of up to 200 characters. The geometry switch selects white-model output, while PBR settings guide materials in textured mode. You can call it programmatically or try it from the playground above.

How long can a Hunyuan 3D v3.1 Rapid Text to 3D prompt be?

Use a nonblank prompt of up to 200 characters. Prioritize the object, its defining shape, and its principal material so the description stays focused.

How should I describe a prop for Hunyuan 3D v3.1 Rapid Text to 3D?

Start with one subject and two or three visible traits. For example, describe a wooden treasure chest with curved lid and iron bands, then add the material or color that matters most.

How do I study silhouettes with Hunyuan 3D v3.1 Rapid Text to 3D?

Set enable_geometry to true to generate a white model. Use the preview to inspect the object from different angles and compare the shape of its main parts.

How do I add PBR materials in Hunyuan 3D v3.1 Rapid Text to 3D?

Set enable_geometry to false and enable_pbr to true. Include the intended surface material in the short prompt, then retrieve the model and its returned material files.

When should I choose Pro instead of Hunyuan 3D v3.1 Rapid Text to 3D?

Choose Pro Text to 3D for descriptions up to 1024 characters and a target face count from 40000 to 1500000. Rapid uses a concise 200-character description with geometry and material switches.

How can I iterate on an object with Hunyuan 3D v3.1 Rapid Text to 3D?

Keep the main subject fixed and change one feature per prompt, such as the lid shape, handle position, or surface material. Review the generated assets together to select the direction for further work.

How do I inspect the result of Hunyuan 3D v3.1 Rapid Text to 3D?

Rotate and zoom a returned GLB model in the preview, then download the generated model and companion files. Inspect silhouette, proportions, and materials in your target 3D application.