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MODEL ID hyper3d:rodin@gen-2
api-only

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

string required value: 3dInference

Identifier for the type of task being performed

taskUUID

string required UUID v4

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

outputType

string default: URL

3D output type.

Allowed values 1 value

outputFormat

string default: 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 values 1 value

webhookURL

string URI

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 more 1 resource

deliveryMethod

string default: async

Determines how the API delivers task results.

Allowed values 2 values
Returns complete results directly in the API response.
Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse.
Learn more 1 resource

uploadEndpoint

string URI

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

integer min: 60

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

includeCost

boolean default: false

Include task cost in the response.

numberResults

integer min: 1 max: 4 default: 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 strings min items: 1max items: 5

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

Generation Parameters

Core parameters for controlling the generated content.

model

string required value: hyper3d:rodin@gen-2

Identifier of the model to use for generation.

positivePrompt

string min: 2 max: 4000

Text prompt describing elements to include in the generated output.

seed

integer min: 0 max: 65535

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

Settings

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

addons

array of strings min items: 1

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

settings » boundingBox

boundingBox

array of integers items: 3

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

settings » hdTexture

hdTexture

boolean default: false

Enables high-quality texture generation.

settings » material

material

string default: PBR

Rendering material type for the output model.

Allowed values 3 values
Physically-based rendering materials.
Baked lighting materials.
Both PBR and Shaded materials.
settings » meshMode

meshMode

string default: Quad

Mesh topology for the output model.

Allowed values 2 values
Triangular mesh.
Quadrilateral mesh.
settings » polyCount

polyCount

integer min: 500 max: 1000000

Custom polygon count for the output mesh.

settings » quality

quality

string default: medium

Preset polygon count for the output mesh.

Allowed values 4 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 default: false

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

settings » useOriginalAlpha

useOriginalAlpha

boolean default: false

Preserves the original image transparency channel.

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