falImage to imageComing soon

fal-ai/flux-kontext-lora

fal-ai/flux-kontext-lora is an image to image tool from fal that runs in the background and returns images. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs
In the background
Returns
image
Longest queue wait
3600s
Run deadline
1800s
Largest inline input
1024 KB
Largest input file
500 MB
Largest output
4768 MB
Outputs per run
16

Input

FieldKindDefaultDescription
image_url requiredURL or file—The URL of the image to edit. Max width: 14142px, Max height: 14142px, Timeout: 20s
prompt requiredtext—The prompt to edit the image.
num_inference_stepsnumber (whole)
10 to 50
30The number of inference steps to perform.
seednumber (whole)— The same seed and the same prompt given to the same version of the model will output the same image every time.
guidance_scalenumber
0 to 20
2.5 The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.
num_imagesnumber (whole)
1 to 4
1The number of images to generate.
output_formatone of
jpeg, png
pngThe format of the generated image.
lorasJSON[] The LoRAs to use for the image generation. You can use any number of LoRAs and they will be merged together to generate the final image.
accelerationone of
none, regular, high
noneThe speed of the generation. The higher the speed, the faster the generation.
resolution_modeone of
auto, match_input, 1:1, 16:9, 21:9, 3:2, 2:3, 4:5, 5:4, 3:4, 4:3, 9:16, 9:21
match_input Determines how the output resolution is set for image editing. - `auto`: The model selects an optimal resolution from a predefined set that best matches the input image's aspect ratio. This is the recommended setting for most use cases as it's what the model was trained on. - `match_input`: The model will attempt to use the same resolution as the input image. The resolution will be adjusted to be compatible with the model's requirements (e.g. dimensions must be multiples of 16 and within supported limits). Apart from these, a few aspect ratios are also supported.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "fal-ai/flux-kontext-lora",
    "input": {
      "image_url": "https://storage.googleapis.com/falserverless/example_inputs/kontext_example_input.webp",
      "prompt": "change the setting to a day time, add a lot of people walking the sidewalk while maintaining the same style of the painting"
    }
  }'