Video

Hunyuan V2V

Credit-based pricing. Supports reference video.

Try Hunyuan V2V →Compare models

Output

video

Aspect ratio

16:9, 9:16

Resolution

480p, 580p, 720p

Inputs

Reference video (required)

Example prompt

Studio Ghibli anime style, soft watercolour backgrounds, clean linework, cherry blossom petals shimmering in dreamy pastel light

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/hunyuan-video/video-to-video.

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.
`num_frames`	number	Optional	The number of frames to generate. · Allowed: 129, 85 · Default: 129
`strength`	number	Optional	Strength for Video-to-Video · Default: 0.85 · Range: 0.01–1
`pro_mode`	boolean	Optional	By default, generations are done with 35 steps. Pro mode does 55 steps which results in higher quality videos but will take more time and cost 2x more · Default: false
`seed`	integer	Optional	The seed to use for generating the video.
`enable_safety_checker`	boolean	Optional	Run the input safety checker before generation. · Default: false
`aspect_ratio`	string	Optional	Allowed: 16:9, 9:16
`resolution`	string	Optional	Allowed: 480p, 580p, 720p
`video_url`	string	Required	Format: uri

Minimal request example

{
  "model_id": "fal-ai/hunyuan-video/video-to-video",
  "prompt": "Studio Ghibli anime style, soft watercolour backgrounds, clean linework, cherry blossom petals shimmering in dreamy pastel light",
  "video_url": "https://example.com/video"
}

Raw JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.artemotion.ai/api/v1/models?id=fal-ai%2Fhunyuan-video%2Fvideo-to-video",
  "title": "Hunyuan V2V generation request",
  "description": "Request body accepted by POST /api/v1/generate for fal-ai/hunyuan-video/video-to-video.",
  "type": "object",
  "properties": {
    "model_id": {
      "type": "string",
      "const": "fal-ai/hunyuan-video/video-to-video",
      "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"
    },
    "num_frames": {
      "title": "Num Frames",
      "description": "The number of frames to generate.",
      "default": 129,
      "type": "number",
      "enum": [
        129,
        85
      ]
    },
    "strength": {
      "title": "Strength",
      "description": "Strength for Video-to-Video",
      "default": 0.85,
      "type": "number",
      "minimum": 0.01,
      "maximum": 1,
      "multipleOf": 0.01
    },
    "pro_mode": {
      "title": "Pro Mode",
      "description": "By default, generations are done with 35 steps. Pro mode does 55 steps which results in higher quality videos but will take more time and cost 2x more",
      "default": false,
      "type": "boolean"
    },
    "seed": {
      "title": "Seed",
      "description": "The seed to use for generating the video.",
      "type": "integer"
    },
    "enable_safety_checker": {
      "title": "Enable Safety Checker",
      "description": "Run the input safety checker before generation.",
      "default": false,
      "type": "boolean"
    },
    "aspect_ratio": {
      "type": "string",
      "enum": [
        "16:9",
        "9:16"
      ]
    },
    "resolution": {
      "type": "string",
      "enum": [
        "480p",
        "580p",
        "720p"
      ]
    },
    "video_url": {
      "type": "string",
      "format": "uri"
    }
  },
  "required": [
    "model_id",
    "prompt",
    "video_url"
  ],
  "additionalProperties": false
}

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FAQ

How much does Hunyuan V2V 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 Hunyuan V2V fails?

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

Can I call Hunyuan V2V from the API?

Yes. Use POST /api/v1/generate with model_id: "fal-ai/hunyuan-video/video-to-video". 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 Hunyuan V2V?

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