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MODEL IDtencent:hunyuan-3d@3.1-rapid
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Hunyuan 3D 3.1 Rapid

Hunyuan 3D 3.1 Rapid is a speed-optimized 3D generation model from Tencent designed for fast prototyping and iteration. It generates 3D assets from text prompts or single images in seconds, producing clean meshes with PBR materials. Ideal for concept evaluation, rapid asset library building, and early-stage design workflows where speed is prioritized over maximum geometric detail.

Hunyuan 3D 3.1 Rapid

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

uploadEndpoint

stringURI

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.

includeCost

booleandefault: false

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 » image

image

string

Image input (UUID, URL, Data URI, or Base64).

Core Parameters

Primary parameters that define the task output.

model

stringrequiredvalue: tencent:hunyuan-3d@3.1-rapid

Identifier of the model to use for generation.

Learn more3 resources

positivePrompt

stringmin: 2max: 200

Text prompt describing elements to include in the generated output.

Learn more1 resource

Settings

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

settings » geometryOnly

geometryOnly

booleandefault: false

Generate a texture-free geometry model (white model).

settings » pbr

pbr

booleandefault: false

Enable PBR (Physically Based Rendering) material generation.

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