falText to imageComing soon

fal-ai/wan-25-preview/text-to-image

fal-ai/wan-25-preview/text-to-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 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

FieldKindDefaultDescription
prompt requiredtext—The prompt for image generation. Supports Chinese and English, max 2000 characters.
negative_prompttext—Negative prompt to describe content to avoid. Max 500 characters.
num_imagesnumber (whole)
1 to 4
1Number of images to generate. Values from 1 to 4.
image_sizeJSONsquareThe size of the generated image. Can use preset names like 'square', 'landscape_16_9', etc., or specific dimensions. Total pixels must be between 768×768 and 1440×1440, with aspect ratio between [1:4, 4:1].
enable_prompt_expansiontrue or falsetrueWhether to enable prompt rewriting using LLM. Improves results for short prompts but increases processing time.
seednumber (whole)—Random seed for reproducibility. If None, a random seed is chosen.

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/wan-25-preview/text-to-image",
    "input": {
      "prompt": "A lone samurai standing on the edge of a cliff at twilight, overlooking a vast valley shrouded in mist. The sky burns with deep orange and purple hues from the…"
    }
  }'