Hunyuan3D v2

Credit-based pricing. Supports reference images.

Try Hunyuan3D v2 →Compare models

Output

3D mesh

Aspect ratio

1:1

Resolution

1024

Inputs

Reference image (required)

Example prompt

A mystical forest druid in carved bark armor with antler headdress and glowing rune staff

Try this prompt →

LLM-ready

API & LLM schema

Exact request contract for this model. Agents can fetch it from /api/v1/models?id=fal-ai/hunyuan3d/v2.

POST/api/v1/generate15 fields · 3 required

Field	Type	Requirement	Contract
`model_id`	constant	Required	ArtEmotion model identifier.
`extra`	object	Optional	Model-specific settings may also be nested here.
`max_credits`	number	Optional	Reject before submission if the estimated list price exceeds this cap. · Range: 1–…
`webhook_url`	string	Optional	Format: uri
`webhook_secret`	string	Optional	Optional model input.
`folder_id`	string	Optional	Optional model input.
`prompt`	string	Required	Optional model input.
`guidance_scale`	number	Optional	Guidance scale for the model. · Default: 7.5 · Range: 0–20
`num_inference_steps`	number	Optional	Number of inference steps to perform. · Default: 50 · Range: 1–50
`octree_resolution`	number	Optional	Octree resolution for the model. · Default: 256 · Range: 1–1024
`textured_mesh`	boolean	Optional	Generate a fully textured mesh (3× the white-mesh price). Turn off for a cheaper untextured geometry-only model. · Default: true
`seed`	integer	Optional	The same seed and the same prompt given to the same version of the model will output the same image every time.
`aspect_ratio`	string	Optional	Allowed: 1:1
`resolution`	string	Optional	Allowed: 1024
`reference_image_url`	string	Required	Format: uri

Minimal request example

{
  "model_id": "fal-ai/hunyuan3d/v2",
  "prompt": "A mystical forest druid in carved bark armor with antler headdress and glowing rune staff",
  "reference_image_url": "https://example.com/reference_image"
}

Raw JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.artemotion.ai/api/v1/models?id=fal-ai%2Fhunyuan3d%2Fv2",
  "title": "Hunyuan3D v2 generation request",
  "description": "Request body accepted by POST /api/v1/generate for fal-ai/hunyuan3d/v2.",
  "type": "object",
  "properties": {
    "model_id": {
      "type": "string",
      "const": "fal-ai/hunyuan3d/v2",
      "description": "ArtEmotion model identifier."
    },
    "extra": {
      "type": "object",
      "additionalProperties": true,
      "description": "Model-specific settings may also be nested here."
    },
    "max_credits": {
      "type": "number",
      "minimum": 1,
      "description": "Reject before submission if the estimated list price exceeds this cap."
    },
    "webhook_url": {
      "type": "string",
      "format": "uri",
      "maxLength": 2048
    },
    "webhook_secret": {
      "type": "string",
      "maxLength": 512
    },
    "folder_id": {
      "type": "string"
    },
    "prompt": {
      "type": "string"
    },
    "guidance_scale": {
      "title": "Guidance Scale",
      "description": "Guidance scale for the model.",
      "default": 7.5,
      "type": "number",
      "minimum": 0,
      "maximum": 20
    },
    "num_inference_steps": {
      "title": "Inference Steps",
      "description": "Number of inference steps to perform.",
      "default": 50,
      "type": "number",
      "minimum": 1,
      "maximum": 50
    },
    "octree_resolution": {
      "title": "Octree Resolution",
      "description": "Octree resolution for the model.",
      "default": 256,
      "type": "number",
      "minimum": 1,
      "maximum": 1024
    },
    "textured_mesh": {
      "title": "Textured Mesh",
      "description": "Generate a fully textured mesh (3× the white-mesh price). Turn off for a cheaper untextured geometry-only model.",
      "default": true,
      "type": "boolean"
    },
    "seed": {
      "title": "Seed",
      "description": "The same seed and the same prompt given to the same version of the model will output the same image every time.",
      "type": "integer"
    },
    "aspect_ratio": {
      "type": "string",
      "enum": [
        "1:1"
      ]
    },
    "resolution": {
      "type": "string",
      "enum": [
        "1024"
      ]
    },
    "reference_image_url": {
      "type": "string",
      "format": "uri"
    }
  },
  "required": [
    "model_id",
    "prompt",
    "reference_image_url"
  ],
  "additionalProperties": false
}

Browse schemas for every ArtEmotion model →

FAQ

How much does Hunyuan3D v2 cost on ArtEmotion?

Credit-based pricing. You pay in ArtEmotion credits — every plan and top-up converts USD to credits at a fixed rate.

Do I get my credits back if Hunyuan3D v2 fails?

Yes — failed generations are never charged. The credits are released back to your balance automatically.

Can I call Hunyuan3D v2 from the API?

Yes. Use POST /api/v1/generate with model_id: "fal-ai/hunyuan3d/v2". See the API reference for the full schema.

Where are my generations stored?

Every output is saved to your personal Library. You can export or delete everything any time from Privacy & deletion.

Ready to generate with Hunyuan3D v2?

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No commitment. New accounts get 50 free credits on signup. See pricing.