Community Infinite Talk API | Pricing & Docs

community/infinite-talk/fast/multi

Transform speech into realistic talking videos with precise lip-sync, expressive motion, and stable identity for lifelike avatars, dubbing, and long-form visual storytelling.

1. Get started

Use RunComfy's API to run community/infinite-talk/fast/multi. For accepted inputs and outputs, see the model's schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/community/infinite-talk/fast/multi \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "left_audio": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.mp3",
    "right_audio": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-2.mp3",
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.png"
  }'

2. Authentication

Set the YOUR_API_TOKEN environment variable with your API key (manage keys in your Profile) and include it on every request as a Bearer token via the Authorization header: Authorization: Bearer $YOUR_API_TOKEN.

3. API reference

Submit a request

Submit an asynchronous generation job and immediately receive a request_id plus URLs to check status, fetch results, and cancel.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/community/infinite-talk/fast/multi \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "left_audio": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.mp3",
    "right_audio": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-2.mp3",
    "image": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.png"
  }'

Monitor request status

Fetch the current state for a request_id ("in_queue", "in_progress", "completed", or "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Retrieve request results

Retrieve the final outputs and metadata for the given request_id; if the job is not complete, the response returns the current state so you can continue polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Cancel a request

Cancel a queued job by request_id, in-progress jobs cannot be cancelled.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File inputs

Hosted file (URL)

Provide a publicly reachable HTTPS URL. Ensure the host allows server‑side fetches (no login/cookies required) and isn't rate‑limited or blocking bots. Recommended limits: images ≤ 50 MB (~4K), videos ≤ 100 MB (~2–5 min @ 720p). Prefer stable or pre‑signed URLs for private assets.

5. Schema

Input schema

{
  "type": "object",
  "title": "Input",
  "required": [
    "left_audio",
    "right_audio",
    "image"
  ],
  "properties": {
    "left_audio": {
      "title": "Left Audio",
      "description": "The audio of the person on the left for generating the output. The duration of this audio should be less than 10 minutes.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.mp3"
    },
    "right_audio": {
      "title": "Right Audio",
      "description": "The audio of the person on the right for generating the output. The duration of this audio should be less than 10 minutes.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-2.mp3"
    },
    "image": {
      "title": "Image",
      "description": "The image for generating the output.",
      "type": "string",
      "default": "https://playgrounds-storage-public.runcomfy.net/tools/7230/media-files/input-1-1.png"
    },
    "prompt": {
      "title": "Prompt",
      "description": "The positive prompt for the generation.",
      "type": "string",
      "default": ""
    },
    "order": {
      "title": "Order",
      "description": "The order of the two audio sources in the output video. \"meanwhile\" means both audio sources will play at the same time, \"left_right\" means the left audio will play first then the right audio will play, and \"right_left\" means the right audio will play first then the left audio will play.",
      "type": "string",
      "enum": [
        "meanwhile",
        "left_right",
        "right_left"
      ],
      "default": "left_right"
    },
    "seed": {
      "title": "Seed",
      "description": "The random seed to use for the generation. -1 means a random seed will be used.",
      "type": "integer",
      "minimum": -1,
      "maximum": 2147483647,
      "default": -1
    }
  }
}

Output schema

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "single image URL"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "single video URL"
      },
      "images": {
        "type": "array",
        "description": "multiple image URLs",
        "items": { "type": "string", "format": "uri" }
      },
      "videos": {
        "type": "array",
        "description": "multiple video URLs",
        "items": { "type": "string", "format": "uri" }
      }
    }
  }
}

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Infinite Talk Multi-Person: Audio-to-Video Generation with Multi-Person Support