Scail 2

Edits a video you give it

Liveby fal

SCAIL-2 is an end-to-end character animation model that drives a reference character from a source video without relying on intermediate pose representations like skeleton maps.

Ask your agent

Say it in your own words. Your agent picks this tool, fills in the details and brings back the answer.

Use Scail 2 to make this clip look like it was shot at night.

Change the background of this video to a beach.

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How it works

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For developersSummary, tool id, API call and input schema

Video API by fal, callable through Superpowers. It costs $1.08 per 5s clip, charged only when the call succeeds. Call it with one API key: POST /v1/run with "tool": "fal.scail-2", or over MCP with run_tool.

Tool id
Price per call: $1.08 / 5s clip

Call it

Also over MCP as run_tool

curl -X POST https://superpowers.tools/v1/run \
  -H 'Authorization: Bearer $SP_KEY' \
  -d '{"tool":"fal.scail-2","input":{"image_url":"","prompt":"","video_url":""},"idempotency_key":"example-request-1"}'

Input

12 fields · 3 required

{
  "type": "object",
  "required": [
    "prompt",
    "image_url",
    "video_url"
  ],
  "properties": {
    "driving_type": {
      "type": "string",
      "description": "Driving signal for animation mode. `end_to_end` (default) drives directly from the SAM3-masked driving video and is the recommended, most robust path. `pose` renders an explicit NLF/DWPose skeleton from the driving video (more control for challenging inputs).",
      "default": "end_to_end",
      "enum": [
        "end_to_end",
        "pose"
      ]
    },
    "enable_safety_checker": {
      "type": "boolean",
      "description": "Authorized callers may set false to request relaxed screening.",
      "default": true
    },
    "image_url": {
      "type": "string",
      "description": "URL of the reference character image. The character in this image is animated (or used to replace a subject) according to the driving video."
    },
    "num_inference_steps": {
      "type": "integer",
      "description": "Number of diffusion sampling steps. Higher improves quality but is slower.",
      "default": 40
    },
    "mode": {
      "type": "string",
      "description": "`animation` animates the reference character with the driving motion. `replacement` replaces the driving subject with the reference character while keeping the original scene.",
      "default": "animation",
      "enum": [
        "animation",
        "replacement"
      ]
    },
    "seed": {
      "type": "integer",
      "description": "Random seed. Leave empty for a random seed. The seed used is returned in the response."
    },
    "subject_type": {
      "type": "string",
      "description": "Type of subject in the driving video. `animal` switches the SAM3 detection prompt to non-human subjects.",
      "default": "human",
      "enum": [
        "human",
        "animal"
      ]
    },
    "guidance_scale": {
      "type": "number",
      "description": "Classifier-free guidance scale. Controls prompt adherence versus creativity.",
      "default": 5
    },
    "shift": {
      "type": "number",
      "description": "Flow-matching noise schedule shift. 3.0 is recommended for the 512p tier.",
      "default": 3
    },
    "resolution": {
      "type": "string",
      "description": "Output resolution. 512p outputs 896x512 (landscape) or 512x896 (portrait); 704p outputs 1280x704 or 704x1280. Orientation is chosen automatically from the reference image aspect ratio.",
      "default": "512p",
      "enum": [
        "512p",
        "704p"
      ]
    },
    "prompt": {
      "type": "string",
      "description": "The prompt describing the final video to generate."
    },
    "video_url": {
      "type": "string",
      "description": "URL of the driving (motion) video. The subject can be a human, multiple humans, or an animal."
    }
  }
}