Video

AI Avatar Multi (Audio)

Credit-based pricing. Supports image-to-video.

Try AI Avatar Multi (Audio) →Compare models

Output

video

Resolution

480p, 720p

Inputs

Start image (required)
Reference audio (required)

Example prompt

Upload a portrait photo and an audio file — AI Avatar Multi generates a two-person conversation with synchronized lip-sync

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/ai-avatar/multi.

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	Optional	Optional model input.
`acceleration`	string	Optional	The acceleration level to use for generation. · Allowed: none, regular, high · Default: regular
`seed`	integer	Optional	Random seed for reproducibility. If None, a random seed is chosen. · Default: 81 · Range: 0–4294967295
`num_frames`	number	Optional	Number of frames to generate (41–241). Frames above 81 are billed at 1.25×. · Default: 181 · Range: 41–241
`use_only_first_audio`	boolean	Optional	Whether to use only the first audio file. · Default: false
`second_audio_url`	string	Optional	Hosted URL of the second speaker's audio file. Leave blank for single-speaker mode.
`resolution`	string	Optional	Allowed: 480p, 720p
`image_url`	string	Required	Format: uri
`audio_url`	string	Required	Format: uri

Minimal request example

{
  "model_id": "fal-ai/ai-avatar/multi",
  "image_url": "https://example.com/image",
  "audio_url": "https://example.com/audio"
}

Raw JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.artemotion.ai/api/v1/models?id=fal-ai%2Fai-avatar%2Fmulti",
  "title": "AI Avatar Multi (Audio) generation request",
  "description": "Request body accepted by POST /api/v1/generate for fal-ai/ai-avatar/multi.",
  "type": "object",
  "properties": {
    "model_id": {
      "type": "string",
      "const": "fal-ai/ai-avatar/multi",
      "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"
    },
    "acceleration": {
      "title": "Acceleration",
      "description": "The acceleration level to use for generation.",
      "default": "regular",
      "type": "string",
      "enum": [
        "none",
        "regular",
        "high"
      ]
    },
    "seed": {
      "title": "Seed",
      "description": "Random seed for reproducibility. If None, a random seed is chosen.",
      "default": 81,
      "type": "integer",
      "minimum": 0,
      "maximum": 4294967295
    },
    "num_frames": {
      "title": "Num Frames",
      "description": "Number of frames to generate (41–241). Frames above 81 are billed at 1.25×.",
      "default": 181,
      "type": "number",
      "minimum": 41,
      "maximum": 241,
      "multipleOf": 1
    },
    "use_only_first_audio": {
      "title": "Use Only First Audio",
      "description": "Whether to use only the first audio file.",
      "default": false,
      "type": "boolean"
    },
    "second_audio_url": {
      "title": "Person 2 Audio URL",
      "description": "Hosted URL of the second speaker's audio file. Leave blank for single-speaker mode.",
      "type": "string"
    },
    "resolution": {
      "type": "string",
      "enum": [
        "480p",
        "720p"
      ]
    },
    "image_url": {
      "type": "string",
      "format": "uri"
    },
    "audio_url": {
      "type": "string",
      "format": "uri"
    }
  },
  "required": [
    "model_id",
    "image_url",
    "audio_url"
  ],
  "additionalProperties": false
}

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FAQ

How much does AI Avatar Multi (Audio) 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 AI Avatar Multi (Audio) fails?

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

Can I call AI Avatar Multi (Audio) from the API?

Yes. Use POST /api/v1/generate with model_id: "fal-ai/ai-avatar/multi". 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.

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