fal.ai · Image to video
Kling O3 4K
Kling O3 4K, image to video, served by fal.ai. The OpenAPI schema for the fal-ai/kling-video/o3/4k/image-to-video queue. Price: $0.42 per second, audio included (5 s = $2.10). Asynchronous: returns a request_id; poll fal/status and fetch fal/result with model "fal-ai/kling-video".
$0.42 / unitfal.aiVideofal/kling-o3-4k-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/kling-o3-4k-image-to-video (Kling O3 4K, image to video). Call inspect_tool with {"tool_id": "fal/kling-o3-4k-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/kling-o3-4k-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
| Name | Type | Required | Description |
|---|---|---|---|
shot_type | string | No | The type of multi-shot video generation. 'intelligent' lets the model automatically determine shot structure. Options: customize, intelligent. |
prompt | string | No | Text prompt for video generation. Either prompt or multi_prompt must be provided, but not both. |
duration | string | No | Video duration in seconds (3-15s). Options: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14. |
multi_prompt | object[] | No | List of prompts for multi-shot video generation. |
generate_audio | boolean | No | Whether to generate native audio for the video. |
end_image_url | string | No | URL of the end frame image (optional). |
image_url | string | Yes | URL of the start frame image. |
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/kling-o3-4k-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",
"duration": "3",
"generate_audio": false
}
}Price and billing
- Price
- $0.42 / unit
- 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.