falText to imageComing soon

fal-ai/flux-lora

fal-ai/flux-lora is a text 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

$0.0455 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 an image from.
image_sizeJSONlandscape_4_3The size of the generated image.
num_inference_stepsnumber (whole)
1 to 50
28The 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.
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.
guidance_scalenumber
0 to 35
3.5 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. This is always set to 1 for streaming output.
output_formatone of
jpeg, png
jpegThe format of the generated image.
accelerationone of
none, regular
noneAcceleration level for image generation. 'regular' balances speed and quality.

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-lora",
    "input": {
      "prompt": "Extreme close-up of a single tiger eye, direct frontal view. Detailed iris and pupil. Sharp focus on eye texture and color. Natural lighting to capture…"
    }
  }'