--- title: Hunyuan 3D 3.1 Pro | Runware Docs url: https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro description: High-fidelity 3D asset generation with multi-view reconstruction and PBR materials --- # Hunyuan 3D 3.1 Pro Hunyuan 3D 3.1 Pro is a production-grade 3D generation model from Tencent that creates high-fidelity assets from text prompts or images. It uses enhanced 8-view reconstruction for improved spatial accuracy and reduced geometric artifacts, producing clean topology, watertight meshes, and PBR materials suitable for game development, 3D printing, and professional animation workflows. - **ID**: `tencent:hunyuan-3d@3.1-pro` - **Status**: coming-soon - **Release Date**: February 10, 2026 - **Capabilities**: Text to 3D, Image to 3D ## Compatibility & Validation When `positivePrompt` and `inputs.image` are provided, `settings.generateType` must be `Sketch`. --- When `settings.generateType` is `Geometry`, `settings.pbr` cannot be used. --- When `settings.polygonType` is provided, `settings.generateType` must be `LowPoly`. ## Request Parameters **API Options** Platform-level options for task execution and delivery. ### [taskType](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-tasktype) - **Type**: `string` - **Required**: true - **Value**: `3dInference` Identifier for the type of task being performed ### [taskUUID](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-taskuuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task. ### [outputType](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-outputtype) - **Type**: `string` - **Default**: `URL` 3D output type. **Allowed values**: `URL` ### [outputFormat](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-outputformat) - **Type**: `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. **Allowed values**: `GLB` `PLY` ### [webhookURL](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-webhookurl) - **Type**: `string` - **Format**: `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): - [Webhooks](https://runware.ai/docs/platform/webhooks) (platform) ### [deliveryMethod](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-deliverymethod) - **Type**: `string` - **Default**: `async` Determines how the API delivers task results. **Allowed values**: - `sync` Returns complete results directly in the API response. - `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse. **Learn more** (1 resource): - [Task Polling](https://runware.ai/docs/platform/task-polling) (platform) ### [uploadEndpoint](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-uploadendpoint) - **Type**: `string` - **Format**: `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. ```text // 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](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-ttl) - **Type**: `integer` - **Min**: `60` Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`. ### [includeCost](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-includecost) - **Type**: `boolean` - **Default**: `false` Include task cost in the response. ### [numberResults](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-numberresults) - **Type**: `integer` - **Min**: `1` - **Max**: `20` - **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. ### [image](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-inputs-image) - **Path**: `inputs.image` - **Type**: `string` Image input (UUID, URL, Data URI, or Base64). ### [images](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-inputs-images) - **Path**: `inputs.images` - **Type**: `array of strings` Array of image inputs (UUID, URL, Data URI, or Base64). **Generation Parameters** Core parameters for controlling the generated content. ### [model](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-model) - **Type**: `string` - **Required**: true - **Value**: `tencent:hunyuan-3d@3-1-pro` Identifier of the model to use for generation. **Learn more** (3 resources): - [Text To Image: Model Selection The Foundation Of Generation](https://runware.ai/docs/guides/text-to-image#model-selection-the-foundation-of-generation) (guide) - [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/guides/image-inpainting#model-specialized-inpainting-models) (guide) - [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide) ### [positivePrompt](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-positiveprompt) - **Type**: `string` - **Max**: `1024` Text prompt describing elements to include in the generated output. **Learn more** (2 resources): - [Text To Image: Prompts Guiding The Generation](https://runware.ai/docs/guides/text-to-image#prompts-guiding-the-generation) (guide) - [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide) **Settings** Technical parameters to fine-tune the inference process. These must be nested inside the \`settings\` object. ### [faceCount](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-settings-facecount) - **Path**: `settings.faceCount` - **Type**: `integer` - **Min**: `40000` - **Max**: `1500000` - **Default**: `500000` Number of faces (polygons) in the generated 3D model. ### [generateType](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-settings-generatetype) - **Path**: `settings.generateType` - **Type**: `string` - **Default**: `Normal` Generation mode for 3D model creation. **Allowed values**: - `Normal` Generates a textured geometry model. - `LowPoly` Generates a model with intelligent polygon reduction. - `Geometry` Generates a texture-free white model. - `Sketch` Accepts sketch or line art input. ### [pbr](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-settings-pbr) - **Path**: `settings.pbr` - **Type**: `boolean` - **Default**: `false` Enable PBR (Physically Based Rendering) material generation. ### [polygonType](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#request-settings-polygontype) - **Path**: `settings.polygonType` - **Type**: `string` - **Default**: `triangle` Polygon type for mesh surface. **Allowed values**: - `triangle` Triangle-only mesh. - `quadrilateral` Mix of quad and triangle faces. ## Response Parameters ### [taskType](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-tasktype) - **Type**: `string` - **Required**: true - **Value**: `3dInference` Type of the task. ### [taskUUID](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-taskuuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID of the task. ### [seed](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-seed) - **Type**: `integer` The seed used for generation. If none was provided, shows the randomly generated seed. ### [cost](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-cost) - **Type**: `float` Task cost in USD. Present when `includeCost` is set to `true` in the request. ### [modelUUID](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-modeluuid) - **Type**: `string` - **Required**: true - **Format**: `UUID v4` UUID of the output 3D model file. ### [modelURL](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-modelurl) - **Type**: `string` - **Format**: `URI` URL of the output 3D model file. ### [modelBase64Data](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-modelbase64data) - **Type**: `string` Base64-encoded 3D model file data. ### [modelDataURI](https://runware.ai/docs/models/tencent-hunyuan-3d-3-1-pro#response-modeldatauri) - **Type**: `string` - **Format**: `URI` Data URI of the output 3D model file.