Ltx 2.5 Audio to Video Fast

Turns a recording into a video

Liveby LTX

LTX-2.5 is Lightricks' open-source audio-video model.

This endpoint generates video timed to a supplied audio clip in a speed-optimized mode — useful for music-driven content, dialogue-led shorts, and ads keyed to a track.

Ask your agent

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

Make a 5-second video with Ltx 2.5 Audio to Video Fast of a drone flying over Florianópolis at sunrise.

Turn this product photo into a short video for Instagram.

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How it works

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Pay only when it worksEach use comes out of your balance. If it fails, you aren't charged.

For developersSummary, tool id, API call and input schema

Video API by LTX, callable through Superpowers. It costs $0.702 per 5s clip, charged only when the call succeeds. Call it with one API key: POST /v1/run with "tool": "fal.lightricks-ltx-2.5-audio-to-video-fast", or over MCP with run_tool.

Tool id
Price per call: $0.702 / 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.lightricks-ltx-2.5-audio-to-video-fast","input":{"audio_url":""},"idempotency_key":"example-request-1"}'

Input

5 fields · 1 required

{
  "type": "object",
  "required": [
    "audio_url"
  ],
  "properties": {
    "image_url": {
      "type": "string",
      "description": "URL of an image to use as the first frame of the video. If not provided, prompt is required."
    },
    "audio_url": {
      "type": "string",
      "description": "URL of the audio file to generate a video from. Duration must be between 2 and 20 seconds; pro models support a maximum of 10 seconds. Must be publicly accessible or base64 data URI."
    },
    "guidance_scale": {
      "type": "number",
      "description": "Guidance scale for video generation. Higher values make the output more closely follow the prompt. Defaults to 5 for text-to-video, or 9 when providing an image."
    },
    "aspect_ratio": {
      "type": "string",
      "description": "The aspect ratio of the generated video. If 'auto', the aspect ratio will be determined automatically based on the input image, or defaults to 16:9 if no image is provided.",
      "default": "auto",
      "enum": [
        "auto",
        "16:9",
        "9:16"
      ]
    },
    "prompt": {
      "type": "string",
      "description": "Text description of how the video should be generated. Required if image_url is not provided. When image_url is provided, this describes how the image should be animated."
    }
  }
}