Text-to-3D Generation API 2026 - Hunyuan 3D & Tripo (glb/obj/fbx)

🧊 Text-to-3D Generation models & pricing

Seven 3D models from Tencent Hunyuan and Tripo (VAST). Text-to-3D or image-to-3D, with glb, obj and fbx output ready for game engines, AR and 3D printing.

Model	Price	Strength
hy-3d-express	$0.277 / gen	Fastest Hunyuan 3D, text/image-to-3D, obj zip	NEW
hy-3d-3.0	$0.369 / gen	Hunyuan 3D, obj zip + glb output	NEW
hy-3d-3.1	$0.369 / gen	Latest Hunyuan 3D, improved geometry & detail	NEW
hy-3d-motion	$0.185 / gen	3D motion generation, fbx output	NEW
hy-3d-polygen-image	$0.554 / gen	Image-to-3D, glb + obj + fbx	NEW
tripo-3d-3.1	$0.323 / gen	Tripo (VAST) text/image-to-3D, glb	NEW
tripo-3d-p1	$0.323 / gen	Tripo (VAST) text/image-to-3D, glb	NEW

Why run these models on NovAI?

Models

7 3D models

From

$0.185 / gen

Output

glb / obj / fbx

Input

Text or Image

Failed job

Refunded

Platform fee

$0

One async endpoint (/v1/three_d/generations) - submit, poll, download the model
Flat per-generation price: the full amount is pre-deducted and refunded in full if the job fails or is cancelled
Multiple output formats (glb preferred, plus obj zip and fbx) in a single outputs array
Image-to-3D (hy-3d-polygen-image, tripo) and 3D motion (hy-3d-motion) supported
No Chinese phone number or CNY billing - pay by card or USDT in USD

🚀 API usage

1. Submit — text-to-3D (async)

curl -X POST https://aiapi-pro.com/v1/three_d/generations \
  -H "Authorization: Bearer $NOVAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "hy-3d-3.1",
    "prompt": "a cute cartoon dog, stylized, game-ready"
  }'
# -> { "id": "", "status": "queued" }

2. Poll for the downloadable model

curl "https://aiapi-pro.com/v1/three_d/generations/{task_id}?model=hy-3d-3.1" \
  -H "Authorization: Bearer $NOVAI_API_KEY"
# -> { "status": "succeeded", "model_url": "https://.../model.glb",
#      "outputs": [ { "type": "glb", "url": "...", "preview_image_url": "..." } ] }

Async flow: POST /v1/three_d/generations returns {id, status:"queued"}. Poll GET /v1/three_d/generations/{id} until status is succeeded (then model_url is the primary asset — glb preferred — and outputs lists every format). Generation takes 1–8 minutes. 3D is billed at a flat per-generation price, pre-deducted at submit and refunded in full if the job fails or is cancelled — you only pay for successful generations.

Best use cases

Game-ready props and characters
AR / VR asset pipelines
3D printing from a text prompt or photo
Product visualization and configurators
Rapid concept modeling

Frequently asked questions

What 3D formats do I get?

Depending on the model you get glb (preferred, returned as model_url), an obj zip, and/or fbx. Every available format is listed in the outputs array of the completed task.

How is 3D generation priced?

Unlike image/video, upstream 3D is billed by credits with no token usage returned, so NovAI charges a flat per-generation price (from $0.185). The price is pre-deducted at submit and refunded in full on failure or cancellation.

How long does a 3D generation take?

Typically 1-8 minutes. Submit returns {id, status:'queued'}; poll GET /v1/three_d/generations/{id} until status is succeeded.

Can I generate 3D from an image?

Yes. hy-3d-polygen-image requires an image input, and hy-3d-3.0/3.1 and tripo-3d models accept either text or image.