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ByteDance · fal.ai · Image to video

Seedance 2.5

Seedance 2.5 (ByteDance), image to video, served by fal.ai. The OpenAPI schema for the bytedance/seedance-2.5/image-to-video queue. Price: Same token formula as text to video; 'auto' aspect ratio (follows the image) priced as 21:9. Asynchronous: returns a request_id; poll fal/status and fetch fal/result with model "bytedance/seedance-2.5".

Usage based fal.aiVideofal/seedance-2-5-image-to-videoListed

Activation pending; your agent will see it as unavailable until then.

Use this tool with your agent

Give this to your agent
Use my connected Agentik MCP server. I want to use the tool fal/seedance-2-5-image-to-video (Seedance 2.5 (ByteDance), image to video). Call inspect_tool with {"tool_id": "fal/seedance-2-5-image-to-video"} first and tell me the price before anything runs. Ask me for the inputs it needs; never invent values, IDs or file URLs. When I confirm, call run_tool with tool_id "fal/seedance-2-5-image-to-video" and my inputs, follow it with get_run if it is still running, and give me the result and the price Agentik reports. If the tool is unavailable, say so and use discover_tools to propose an alternative.
Show the prompt

Paste it into Claude, ChatGPT or Codex: your agent takes it from there, and shows the price before it runs.

Parameters

NameTypeRequiredDescription
end_image_urlstringNoThe URL of the image to use as the last frame of the video. When provided, the generated video will transition from the starting image to this ending image. Supported formats: JPEG, PNG, WebP. Max 30 MB.
promptstringYesThe text prompt describing the desired motion and action for the video.
durationstringNoDuration of the video in seconds. Supports 4 to 30 seconds, or auto to let the model decide based on the prompt. Options: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
end_user_idstringNoThe unique user ID of the end user.
aspect_ratiostringNoThe aspect ratio of the generated video. Always "auto" for image-to-video Options: auto, 21:9, 16:9, 4:3, 1:1, 3:4, 9:16.
bitrate_modestringNoOutput bitrate mode. 'high' requests a higher-quality, larger-file encode from the model; 'standard' uses the default bitrate. Options: standard, high.
generate_audiobooleanNoWhether to generate synchronized audio for the video, including sound effects, ambient sounds, and lip-synced speech. The cost of video generation is the same regardless of whether audio is generated or not.
image_urlstringYesThe URL of the starting frame image to animate. Supported formats: JPEG, PNG, WebP. Max 30 MB.
resolutionstringNoVideo resolution - 480p for faster generation, 720p for balance, 1080p for high quality. Options: 480p, 720p, 1080p.

How your agent calls it

First inspect_tool for the current schema and price, then run_tool with the published example after confirming your inputs:

{
  "tool_id": "fal/seedance-2-5-image-to-video",
  "input": {
    "prompt": "a red cube slowly rotating on a white table, soft studio light",
    "image_url": "https://storage.googleapis.com/falserverless/example_outputs/nano-banana-2-t2i-output.png",
    "resolution": "480p",
    "duration": "4",
    "generate_audio": false
  }
}

Price and billing

Price
Usage based
Model
Per unit
Detail
The provider’s price, with no markup. Billed for measured usage.
  • The provider’s price, 0% markup.
  • One prepaid balance for every provider; your agent sees the price before it runs.
  • Pay for measured usage; unused reservations are released.