ComfyUI Node
arkennemasis fal · Kling v3 Pro Motion Control · $0.168/s
Transfer movements from a reference video to any character image. Cost-effective mode for motion transfer, perfect for portraits and simple animations. Pricing (from fal, 2026-09-29): $0.168 per second (fal's billing unit). Model page: https://fal.ai/models/fal-ai/kling-video/v3/pro/motion-control Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/fal-ai_kling-video_v3_pro_motion-control/.
arkennemasis fal · Kling v3 Pro Motion Control · $0.168/s
- image
- video
- video
- video_path
- info
◄prompt►
◄keep_original_soundtrue►
◄character_orientationimage►
◄elementsnull►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Video/Kling
Inputs (10)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | Empty leaves it out. | |
| image | IMAGE | Reference image URL. The characters, backgrounds, and other elements in the generated video are based on this reference image. Characters should have clear body proportions, avoid occlusion, and occupy more than 5% of the image area. | |
| video | VIDEO | Reference video URL. The character actions in the generated video will be consistent with this reference video. Should contain a realistic style character with entire body or upper body visible, including head, without obstruction. Duration limit depends on character_orientation: 10s max for 'image', 30s max for 'video'. | |
| keep_original_sound | BOOLEAN | true | Whether to keep the original sound from the reference video. |
| character_orientation | COMBO | image | Controls whether the output character's orientation matches the reference image or video. 'video': orientation matches reference video - better for complex motions (max 30s). 'image': orientation matches reference image - better for following camera movements (max 10s). |
| elements | STRING | null | Optional element for facial consistency binding. Upload a facial element to enhance identity preservation in the generated video. Only 1 element is supported. Reference in prompt as @Element1. Element binding is only supported when character_orientation is 'video'. JSON. Empty leaves it out. |
| max_cost_usdopt | FLOAT | 20.00–100000 | Safety cap. If the estimated cost of this run is above this many US dollars the node stops BEFORE sending anything to fal. 0 = no cap. |
| reuse_identical_runopt | BOOLEAN | true | If these exact inputs (the settings AND the same pictures/clips/audio) were already paid for and the files are still in output/fal, return them instead of paying again - also after a ComfyUI restart. Turn off for a fresh take with the same settings. |
| extra_jsonopt | STRING | Advanced: a JSON object merged into the request last, for any fal field this node has no box for. Example: {"seed": 7}. Leave empty normally. | |
| max_concurrentopt | INT | 11–32 | How many paid fal calls may run at the same time in one run, across every fal node. 1 (default) = one after another. This node starts its paid part only while fewer than this many fal calls are running. Once any fal node fails, the ones still waiting are not started, so nothing more is billed. |
Outputs (3)
| Name | Type | Description |
|---|---|---|
| video | VIDEO | — |
| video_path | STRING | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |