Hunyuan3D

Hunyuan3D is Tencent’s toolkit for generating and refining 3D assets through hosted tools, APIs, or models run locally. It is best suited to developers and creators who need more than a one-prompt model and can manage either GPU requirements or credit-based API use. Its range is a real advantage, but the right deployment route matters.

Overview

Hunyuan3D brings text- and image-driven generation together with texturing, model editing, mesh operations, and API workflows. Tencent’s international platform accepts text, images, or sketches, including up to four multi-view images; it also supports model adjustments and OBJ and GLB exports. This makes it a stronger fit for workflows that need refinement and delivery options as well as initial generation.

The open-source models offer full weights and training code, giving community developers room to fine-tune and extend them for downstream applications. Local use, however, is hardware-intensive: shape generation requires 10 GB VRAM, texture generation 21 GB, and combined generation 29 GB. Hosted API access avoids that local GPU burden but introduces credit costs and a default concurrency limit.

Key features

Generation, texturing, and editing

Hunyuan3D-2.1 includes an image-to-shape model and a texture-generation model with a physically based rendering synthesis pipeline; the Hunyuan3D-2 repository also supports text-to-3D. The international platform’s support for sketches and multiple views gives creators more ways to specify a result than a single image prompt. Professional-grade editing and adjustment can help carry a generated asset further, while OBJ and GLB exports provide two stated output formats.

Production tools and extensibility

Tencent Cloud’s API tasks extend beyond asset creation to topology reduction, component generation, UV mapping, motion generation, auto-rigging, and format conversion. Smart Topology optimizes mesh topology and supports triangular and quadrilateral faces. A Blender add-on is included in the Hunyuan3D-2 repository, and the Hunyuan3D-2.1 repository documents both an API server and a local Gradio app. These options suit developers and production teams integrating generation into wider workflows, though each adds setup or service-management decisions.

Full weights and training code are meaningful advantages for teams that want to inspect, adapt, or fine-tune the models rather than depend solely on a hosted interface. Tencent points users to WeChat and Discord groups for project discussion and help. API users should also account for the professional edition’s default three concurrent tasks, shared by main and sub-accounts.

Pricing

Hunyuan3D is free and open source, with a free plan and trial. For local use, the main cost to weigh is access to hardware meeting the stated VRAM requirements. Tencent Cloud API use is credit-based:

The 100 free API credits are a one-time allowance, not a recurring monthly quota. Purchased credits expire after a year, so a larger pack only makes sense if expected use justifies the upfront spend and the credits will be consumed in time. Tencent also announced that the Hunyuan 3D 2.5 and 3D-person generation 1.0 APIs stopped accepting new purchases on September 22, 2026, with full service termination scheduled for October 20, 2026; API buyers should choose supported services with that transition in mind.

Platforms

Hunyuan3D supports API, Linux, macOS, self-hosted use, web, and Windows. The repository documents local operation on a computer, while Tencent’s international platform and Cloud APIs provide hosted routes. Local support across the three desktop operating systems is useful, but the VRAM requirements mean that operating-system compatibility alone does not guarantee a suitable machine.

Who it's for

Choose Hunyuan3D if you are a technically equipped creator or developer who wants a broad mix of generation, texturing, editing, and production APIs, or needs open weights and training code for customization. The hosted platform is the more practical route for users without a suitable GPU, while local deployment is attractive to those with the hardware and a reason to run or extend the models themselves. It is a weaker fit for casual users seeking predictable, unrestricted API usage: credits have annual expiry, and professional API concurrency defaults to three tasks.

Pros and cons

• Pro: Text, image, and sketch inputs, multi-view support, editing, and OBJ/GLB export cover more of the asset workflow than generation alone.
• Pro: Full weights and training code enable community fine-tuning and downstream adaptations.
• Pro: API tasks include topology, UV, rigging, motion, and format operations alongside generation.
• Con: Local shape-and-texture generation calls for 29 GB VRAM, a substantial requirement for individual creators.
• Con: Credit packs expire after one year, while the free API pack is a one-time 100-credit grant.
• Con: Professional API use defaults to three concurrent tasks shared across main and sub-accounts.

Alternatives

Browse AI 3D Model Generators to compare category options. Consider Meshy if a freemium service with a 100-credit free tier and 10 monthly free downloads for Meshy 6 Lite models better matches your needs. Hi3D is another freemium option, with 100 lifetime credits, up to 10 asset generations, and one concurrent task on its free plan.

For printer-oriented workflows, Polar Cloud has a free plan limited to one printer, five print jobs a month, mesh files, and 300 MB of storage. Stable Fast 3D offers a community license free for research and non-commercial use, as well as commercial use up to $1,000,000 in annual revenue. Choose Polycam if mobile capture is central: it supports Android and iOS as well as web, with a free plan that includes GLTF exports and public link sharing.

Unique3D offers a free online demo requiring a registration invitation code. Crisp3D has a free web plan with one concurrent task, public models, and no downloads. PartCrafter is a free, MIT-licensed local option requiring a CUDA-enabled GPU with at least 8 GB VRAM.

Verdict

Hunyuan3D is a strong choice for developers and capable creators who want open models alongside hosted generation, editing, and production APIs. Its breadth and customization potential are the main reasons to choose it; the main reasons to look elsewhere are the high local VRAM demands and API credits that expire after a year.