Tongyi-MAIFastHigh

Z-Image Turbo (fal)

Tongyi-MAI's Z-Image Turbo, a 6B-parameter text-to-image model tuned for speed — a full image in as few as 8 steps. Priced per output megapixel, so smaller presets cost proportionally less, making it one of the cheapest options for high-volume generation.

9 credits

per image — 12 square_hd, 9 for 4:3 presets, 7 for 16:9 presets, 3 square

Full image in as few as 8 inference steps

Per-megapixel pricing — small presets cost proportionally less

Six aspect-ratio presets from 512x512 to 1024x1024

Up to 4 images per request

Selectable acceleration level

Run it right now

Test this model instantly in the Console Playground — no code required

Use with AI Assistant

Copy usage instructions for Claude, ChatGPT, or other AI

llms.txtllms.txt ↗

Quick Start

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "fal-ai/z-image/turbo",
  "input": {
    "prompt": "A hyper-realistic close-up portrait of a weathered lighthouse keeper, salt-crusted beard, storm light raking across his face, shot on a Leica M6 with Kodak Portra 400 grain",
    "image_size": "landscape_4_3",
    "num_inference_steps": 8,
    "num_images": 1,
    "output_format": "png"
  }
}'

Parameters

Parameter	Type	Required	Default	Description
`prompt`	string	Yes	-	The prompt to generate an image from.
`image_size`	string	No	landscape_4_3	Output size preset. Charged per output megapixel, so smaller presets cost less. square_hdsquareportrait_4_3portrait_16_9landscape_4_3landscape_16_9
`num_inference_steps`	integer	No	8	The number of inference steps to perform (1-8).
`num_images`	integer	No	1	Number of images to generate (1-4). Charged per image.
`seed`	integer	No	-	The same seed and the same prompt will output the same image every time.
`enable_safety_checker`	boolean	No	true	If set to true, the safety checker will be enabled.
`acceleration`	string	No	regular	The acceleration level to use. noneregularhigh
`output_format`	string	No	png	The format of the generated image. jpegpngwebp

Common Parameters

Common parameters used when calling POST /v1/predictions.

Parameter	Type	Required	Default	Description
`model`	string	Yes	-	Model identifier
`input`	object	Yes	-	Object containing the model-specific parameters from the table above
`output_folder`	string	No	-	Folder path for output files (max 256 chars, '..' not allowed)
`webhook_url`	string	No	-	Webhook URL to call on completion
`is_public`	boolean	No	false	If true, output files are also available via permanent public URLs

Examples

Cinematic portrait

Default landscape preset at 8 steps — the fastest, cheapest path to a usable image.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "fal-ai/z-image/turbo",
  "input": {
    "prompt": "A hyper-realistic close-up portrait of a weathered lighthouse keeper, salt-crusted beard, storm light raking across his face, shot on a Leica M6 with Kodak Portra 400 grain",
    "image_size": "landscape_4_3",
    "num_inference_steps": 8,
    "num_images": 1,
    "output_format": "png"
  }
}'

Low-cost square batch

The 512x512 square preset is a quarter of a megapixel, so a 4-image batch costs about the same as one square_hd image.

curl -X POST "https://api.core.today/v1/predictions" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cdt_your_api_key" \
  -d '{
  "model": "fal-ai/z-image/turbo",
  "input": {
    "prompt": "Flat vector icon of a paper airplane, bold single-color silhouette, generous margins, centered",
    "image_size": "square",
    "num_images": 4,
    "output_format": "webp"
  }
}'