HY-3D-3.0

What is Tencent HY-3D-3.0?

HY-3D-3.0 is Tencent's hosted generative model for creating 3D assets. Instead of returning a conversational answer or a sequence of text tokens, it produces a 3D model that can be downloaded and used in an asset-production workflow. The model is available through Tencent Cloud's HY 3D services and TokenHub.

The model accepts a text description, a reference image, a sketch, or supported multi-view references. For example, a user might provide a prompt describing a stylized vehicle, upload a product photograph, or submit a line drawing that should be converted into a textured object. The result is intended to accelerate the creation of a usable starting asset rather than replace every stage of professional modeling, retopology, texturing, and quality assurance.

HY-3D-3.0 belongs to Tencent's Hunyuan 3D model family. HY-3D-3.1 is also available as a separate selectable model through the professional API, but it should not be treated as the same model or as an automatic upgrade of a 3.0 request.

Inputs and generation modes

The professional API supports prompt- and image-based generation. Documented image inputs include JPG and PNG files, subject to the service's image-size requirements. Text prompts can contain up to 1,024 UTF-8 characters. The surrounding service exposes several generation modes:

• Text-to-3D: Creates an asset from a natural-language description.
• Image-to-3D: Uses a reference image to reconstruct or interpret an object in three dimensions.
• Sketch-to-3D: Uses a sketch or line drawing as the basis for a textured model.
• Multi-view generation: Uses multiple views where supported to provide more visual information about the object.
• Geometry mode: Produces a white model without textures, which can be useful when geometry is more important than surface appearance.
• LowPoly mode: Generates a reduced-polygon asset for uses where mesh simplicity or performance is important.

Additional options include PBR materials, custom face counts, and other production-oriented settings exposed by the HY 3D service. PBR, or physically based rendering, describes material information intended to behave more consistently under different lighting conditions. These options do not guarantee that every generated mesh will be ready for final production without inspection or editing.

What does the API return?

HY-3D-3.0 is designed around asynchronous processing. A client submits a generation job, waits for processing to complete, and then retrieves the result. This differs from a typical chat completion, where text is often returned directly in the same request.

The primary output is a downloadable 3D asset. The supplied specifications identify textured and geometry-only model output, with mainstream 3D output formats available through the surrounding service. HY-3D-3.0 is not a text, image, audio, music, video, or embedding model. It also does not provide a conventional language-model response for explaining the generated object.

Tencent does not publish a conventional context-window figure or maximum output-token limit for this model. Those measurements are not especially meaningful for a service whose main result is a 3D file rather than generated text. The documented text-input limit that is relevant here is a maximum prompt length of 1,024 UTF-8 characters.

Pricing and credit consumption

The professional API uses generation credits instead of standard input and output token billing. The documented default credit costs are:

Optional features can consume additional credits. The research specifically identifies multi-view images, PBR materials, and custom face counts as possible extra-credit features. The final monetary cost therefore depends on the credit package, region, service tier, billing configuration, and selected generation options. Tencent's international HY 3D service documents prepaid and postpaid arrangements, but the supplied information does not establish one universal currency price for every account or region.

This pricing structure makes simple geometry generation cheaper in credits than default textured generation, while LowPoly mode has a higher documented base cost. A team comparing costs should account for failed or discarded generations, optional processing features, and the amount of manual cleanup required after generation rather than looking only at the credit count for one request.

Where HY-3D-3.0 is most useful

The model's main strength is the range of ways it can begin an asset. A team does not need to start with a finished 3D mesh: a prompt, product image, sketch, or supported set of views can provide the initial input. This is particularly useful during ideation, prototyping, and the early stages of asset production.

• Game development: Create draft props, environmental objects, and other assets for rapid iteration, with LowPoly mode available when a reduced mesh is preferred.
• E-commerce and advertising: Turn product references into 3D representations for visualization and promotional workflows.
• Product design: Explore forms from written descriptions or sketches before committing to detailed manual modeling.
• 3D printing: Use geometry-focused generation as a starting point, while checking the resulting mesh for printability and making any required repairs.
• Film and animation: Generate early asset concepts and production references that can be refined by artists.
• Digital-twin and visualization workflows: Use image or multi-view inputs to help create an initial spatial representation of a physical object.

These are practical fit assessments based on the model's documented inputs and outputs, not guarantees that every generated asset will meet a project's final quality requirements.

Limitations to consider

HY-3D-3.0 is a hosted service rather than a downloadable model with publicly documented weights. Users therefore depend on Tencent Cloud for access, processing, job handling, and result retrieval. The supplied specifications do not describe a self-hosting option, local inference package, or public fine-tuning interface.

Output quality can vary with prompt specificity, reference-image quality, object complexity, and the amount of viewpoint information provided. A single image may leave parts of an object ambiguous, while multi-view input can provide more information when that workflow is supported. Even then, generated geometry and materials should be reviewed for shape accuracy, topology, surface defects, face count, and suitability for the intended engine or downstream application.

The model also has no documented reasoning or coding capability in the usual language-model sense. It does not provide tool or function calling, streaming text responses, JSON-mode responses, or conversational web search. Its asynchronous asset-generation workflow should not be selected when the primary requirement is text analysis, software development, structured business data, or a dialogue assistant.

Speed, cost, and positioning

HY-3D-3.0 trades the simplicity of a text response for a specialized 3D-generation workflow. Requests are asynchronous, so users should plan around job completion and result retrieval rather than expecting an immediate asset in the request response. The model's credit system makes the cost of a generation mode relatively clear, but optional features and regional billing arrangements can change the final price.

Geometry mode is the lower-credit documented option and may be appropriate when a white model is sufficient. Normal mode is the general textured choice. LowPoly mode costs more credits than the documented normal base generation but is better aligned with workflows that specifically need a reduced-polygon result. PBR, multi-view, and custom face-count options can add cost when their production value justifies it.

HY-3D-3.0 is therefore best compared with other specialized 3D asset-generation services, not with text-only language models. Choose it when the required deliverable is a generated 3D object and the convenience of hosted processing matters more than controlling model weights locally. Choose a conventional modeling tool or a specialized manual pipeline when exact topology, engineering precision, repeatability, or detailed artist control is more important than rapid generation.

When to choose this model

Choose HY-3D-3.0 when you need to turn prompts, images, sketches, or supported multi-view references into 3D assets quickly through a managed Tencent Cloud service. It is a practical candidate for prototyping, catalog visualization, early game-asset work, concept development, and other workflows where a generated starting point can save modeling time.

Choose another option when you need text or code generation, image or video output, speech, embeddings, local inference, public model weights, fine-tuning, or a conventional synchronous conversational API. You may also prefer HY-3D-3.1 when its newer capabilities, including expanded multi-angle input support, match your requirements; however, the supplied information does not provide a full benchmark or pricing comparison between the two versions.

Overall, HY-3D-3.0 is a focused 3D asset-generation service. Its useful distinctions are its multiple input paths, separate textured, geometry, and LowPoly modes, optional production settings, and credit-based asynchronous API. Its main trade-offs are hosted-service dependence, variable generation quality, additional charges for some options, and the need for human review before generated assets enter a final production pipeline.