Sam 3 1

Edits a video you give it

Liveby fal

SAM 3.1 builds comes with Object Multiplex, a shared-memory approach for joint multi-object tracking that delivers faster speeds with larger number of objects tracked.

Ask your agent

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

Use Sam 3 1 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 $0.011 per video, charged only when the call succeeds. Call it with one API key: POST /v1/run with "tool": "fal.sam-3-1-video-rle", or over MCP with run_tool.

Tool id
Price per call: $0.011 / video

Call it

Also over MCP as run_tool

curl -X POST https://superpowers.tools/v1/run \
  -H 'Authorization: Bearer $SP_KEY' \
  -d '{"tool":"fal.sam-3-1-video-rle","input":{"video_url":""},"idempotency_key":"example-request-1"}'

Input

11 fields · 1 required

{
  "type": "object",
  "required": [
    "video_url"
  ],
  "properties": {
    "point_prompts": {
      "type": "array",
      "description": "List of point prompts with frame indices.",
      "default": []
    },
    "video_url": {
      "type": "string",
      "description": "The URL of the video to be segmented."
    },
    "max_num_objects": {
      "type": "integer",
      "description": "Maximum number of objects to track in the video.",
      "default": 16
    },
    "boundingbox_zip": {
      "type": "boolean",
      "description": "Return per-frame bounding box overlays as a zip archive.",
      "default": false
    },
    "prompt": {
      "type": "string",
      "description": "Text prompt for segmentation. Use commas to track multiple objects (e.g., 'person, cloth').",
      "default": ""
    },
    "mask_url": {
      "type": "string",
      "description": "The URL of the mask to be applied initially."
    },
    "apply_mask": {
      "type": "boolean",
      "description": "Apply the mask on the video.",
      "default": false
    },
    "return_object_rles": {
      "type": "boolean",
      "description": "Also return every tracked object's own mask in each frame, with an id the object keeps for the whole video. The merged rle is returned as before.",
      "default": false
    },
    "detection_threshold": {
      "type": "number",
      "description": "Detection confidence threshold (0.0-1.0). Lower = more detections but less precise. Defaults: 0.5 for existing, 0.7 for new objects. Try 0.2-0.3 if text prompts fail.",
      "default": 0.5
    },
    "box_prompts": {
      "type": "array",
      "description": "List of box prompts with optional frame_index.",
      "default": []
    },
    "frame_index": {
      "type": "integer",
      "description": "Frame index used for initial interaction when mask_url is provided.",
      "default": 0
    }
  }
}