ComfyUI Node
arkennemasis fal · Flux Pro v1 VTO · $0.0375 + $0.005/MP
Generate virtual try-on results from a person image plus one or more garment references. Pricing (from fal, 2026-09-30): Your request will cost $0.0375 for the first input megapixel, plus $0.005 per extra input megapixel and $0.005 per output megapixel, rounded up to the nearest megapixel. Each input image is rounded up independently before being summed. For example, two 1024x1024 input images with a 1024x1024 output will cost $0.0475 ($0.0375 for the first input megapixel + $0.005 for the second input megapixel + $0.005 for the output megapixel). Model page: https://fal.ai/models/fal-ai/flux-pro/v1/vto Key: FAL_KEY in the .env next to run_nvidia_gpu.bat. Results are saved in output/fal/fal-ai_flux-pro_v1_vto/.
arkennemasis fal · Flux Pro v1 VTO · $0.0375 + $0.005/MP
- human_image
- garment_image
- images
- image_paths
- seed
- has_nsfw_concepts
- prompt
- timings
- info
◄prompt►
◄seed-1►
◄output_formatjpeg►
◄max_cost_usd20.0►
◄reuse_identical_runtrue►
◄extra_json►
◄max_concurrent1►
Categoryarkennemasis/fal/Image/Flux
Inputs (9)
| Name | Type | Default | Description |
|---|---|---|---|
| prompt | STRING | Natural-language styling instructions describing how the garment should be worn on the person (e.g. tucked in, layered, sleeves rolled up). | |
| human_image | IMAGE | The URL of the person image that the garment will be applied onto. The output keeps this image's aspect ratio. Maximum 2 megapixels; recommended under 1 MP. | |
| garment_image | IMAGE | The URL of the garment reference image. Maximum 1 megapixel; recommended around 0.5 MP. Multiple garments must be merged into a single composite image before submission. | |
| seed | INT | -1-1–2147483647 | The same seed and the same input will output the same image every time. If not provided, a random seed is used. -1 leaves it to the model. |
| output_format | COMBO | jpeg | The format of the generated image. |
| 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 (7)
| Name | Type | Description |
|---|---|---|
| images | IMAGE | — |
| image_paths | STRING | — |
| seed | INT | — |
| has_nsfw_concepts | STRING | — |
| prompt | STRING | — |
| timings | STRING | — |
| info | STRING | JSON: request id, cost estimate, saved files and fal's full answer. |