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fal-ai/hidream-o1-image/dev/edit

Name: fal-ai/hidream-o1-image/dev/edit
Brand: fal

fal-ai/hidream-o1-image/dev/edit 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

$0.0065 per megapixel. Each image_size preset counts as 1 MP, and a custom width × height rounds up to whole megapixels. Default 4 MP per image. 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

Field	Kind	Default	Description
`prompt` required	text	—	Text prompt for image generation, editing, or subject-driven personalization.
`reference_image_urls` required	URLs or files	—	Reference images for image editing or subject-driven personalization.
`image_size`	JSON	{"width":2048,"height":2048}	Requested output image size. Reference-image outputs use the nearest model-supported resolution up to about 2048x2048 pixels.
`num_inference_steps`	number (whole) 1 to 28	28	Number of denoising steps. The dev model is distilled for 28 steps.
`guidance_scale`	number 0 to 20	0	Classifier-free guidance scale. The dev model uses 0.0 by default.
`seed`	number (whole)	—	Random seed for reproducible generation.
`num_images`	number (whole) 1 to 4	1	Number of images to generate.
`output_format`	one of jpeg, png, webp	png	The format of the generated image.
`keep_original_aspect`	true or false	false	When exactly one reference image is provided, preserve its aspect ratio for the output image.

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/hidream-o1-image/dev/edit",
    "input": {
      "prompt": "A cinematic product photo of a ceramic mug on a marble counter, soft window light, shallow depth of field.",
      "reference_image_urls": [
        "<reference_image_urls>"
      ]
    }
  }'