MODEL IDhyper3d:rodin@gen-2
live

Rodin Gen-2

Hyper3D
by Hyper3D

Rodin Gen-2 is a 10 billion parameter 3D generation model from Hyper3D built on the BANG architecture. It creates production-ready assets from text prompts or up to 5 input images, with 4x geometry improvement over Gen-1. It supports quad-dominant and raw mesh modes, PBR and shaded materials, configurable polygon counts, T/A pose control, bounding box constraints, and output in GLB, FBX, OBJ, USDZ, and STL formats.

Rodin Gen-2

API Options

Platform-level options for task execution and delivery.

taskType

stringrequiredvalue: 3dInference

Identifier for the type of task being performed

taskUUID

stringrequiredUUID v4

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

outputType

stringdefault: URL

3D output type.

Allowed values1 value

outputFormat

stringdefault: GLB

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

  • `GLB`: Binary glTF format for 3D models, including geometry, textures, and PBR materials.
Allowed values1 value

webhookURL

stringuri

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

Learn more1 resource

deliveryMethod

stringdefault: async

Determines how the API delivers task results.

Allowed values2 values
Returns complete results directly in the API response.
Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse.
Learn more1 resource

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

Common use cases:

  • Cloud storage: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
  • CDN integration: Upload to content delivery networks for immediate distribution.
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg

The content data will be sent as the request body to the specified URL when generation is complete.

ttl

integermin: 60

Time-to-live (TTL) in seconds for generated content. Only applies when outputType is URL.

Include task cost in the response.

numberResults

integermin: 1max: 4default: 1

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

Inputs

Input resources for the task (images, audio, etc). These must be nested inside the inputs object.

inputs » images

images

array of stringsmin items: 1max items: 5

Image inputs for image-to-3D generation (UUID, URL, Data URI, or Base64). First image is used for material generation.

Core Parameters

Primary parameters that define the task output.

model

stringrequiredvalue: hyper3d:rodin@gen-2

Identifier of the model to use for generation.

Learn more3 resources

positivePrompt

stringmin: 2max: 4000

Text prompt describing elements to include in the generated output.

Learn more1 resource

seed

integermin: 0max: 65535

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

Learn more1 resource

Settings

Technical parameters to fine-tune the inference process. These must be nested inside the settings object.

settings » addons

addons

array of stringsmin items: 1

Additional output features. In Quad mode, face count is approximately 16× the quality setting.

settings » boundingBox

boundingBox

array of integersitems: 3

Maximum model dimensions in [Y, Z, X] format.

settings » hdTexture

hdTexture

boolean

Enables high-quality texture generation.

settings » material

material

stringdefault: PBR

Rendering material type for the output model.

Allowed values3 values
Physically-based rendering materials.
Baked lighting materials.
Both PBR and Shaded materials.
settings » meshMode

meshMode

stringdefault: Quad

Mesh topology for the output model.

Allowed values2 values
Triangular mesh.
Quadrilateral mesh.
settings » polyCount

polyCount

integermin: 500max: 1000000

Custom polygon count for the output mesh. Values of 150,000 or higher are recommended for the best detail.

settings » quality

quality

stringdefault: medium

Preset polygon count for the output mesh.

Allowed values4 values
Raw: 500k faces, Quad: 50k faces.
Raw: 150k faces, Quad: 18k faces.
Raw: 20k faces, Quad: 8k faces.
Raw: 2k faces, Quad: 4k faces.
settings » taPose

taPose

boolean

Forces a T-pose or A-pose for humanoid models.

settings » useOriginalAlpha

Preserves the original image transparency channel.