falText to imageComing soon

fal-ai/moss-image

Name: fal-ai/moss-image
Brand: fal

fal-ai/moss-image 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

$0.065 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

Field	Kind	Default	Description
`prompt` required	text	—	Text prompt for image generation. Supports natural language, tag sequences, and JSON layouts.
`negative_prompt`	text		Negative prompt. When empty, guidance uses transformer layer skipping for the negative branch.
`enable_prompt_expansion`	true or false	true	Plan a structured layout from your prompt before generation. Preserves requested visible text and uses the selected image dimensions. If enhancement is unavailable, uses the original prompt.
`image_size`	JSON	square_hd	Output image size. Width and height are rounded to multiples of 16 between 512 and 2048 pixels.
`num_inference_steps`	number (whole) 1 to 100	50	Number of denoising steps.
`guidance_scale`	number 0 to 10	3	Classifier-free guidance scale.
`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	jpeg	Output image format.

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/moss-image",
    "input": {
      "prompt": "A wide view of a refrigerator beside a kitchen counter with a fruit bowl. A small sticky note on the refrigerator door is handwritten in…"
    }
  }'