falImage to imageComing soon

fal-ai/qwen-image/image-to-image

fal-ai/qwen-image/image-to-image 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.

Priced by usage

Pricing

$0.026 per megapixel. Each image_size preset counts as 1 MP, and a custom width × height rounds up to whole megapixels. Billed on num_images, default 1. The final charge comes from usage.

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
prompt requiredtext—The prompt to generate the image with
image_sizeJSON—The size of the generated image. By default, we will use the provided image for determining the image_size.
num_inference_stepsnumber (whole)
2 to 250
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.
negative_prompttext The negative prompt for the generation
accelerationone of
none, regular, high
noneAcceleration level for image generation. Options: 'none', 'regular', 'high'. Higher acceleration increases speed. 'regular' balances speed and quality. 'high' is recommended for images without text.
lorasJSON[] The LoRAs to use for the image generation. You can use up to 3 LoRAs and they will be merged together to generate the final image.
use_turbotrue or falsefalseEnable turbo mode for faster generation with high quality. When enabled, uses optimized settings (10 steps, CFG=1.2).
image_url requiredURL or file—The reference image to guide the generation.
strengthnumber
0 to 1
0.6Denoising strength. 1.0 = fully remake; 0.0 = preserve original.

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/qwen-image/image-to-image",
    "input": {
      "prompt": "Mount Fuji with purple japanese wisteria in the foreground, clear sky, peaceful spring day, soft natural light, landscape, painted with oil brush on a wood…",
      "image_url": "https://v3.fal.media/files/rabbit/KoIbq6nhDBDPxDQrivW-m.png"
    }
  }'