Z-Image
Generate and edit images from text with optional reference images and safety control.
- Text to image
- Image editing
Starting at
$0.01
per generation
Playground
Input
Text description for image generation
Optional reference image for editing (exactly one URL). Providing it switches the request to image editing.
Runs are charged to your balance.
Output
Output will appear here.
Pricing
| Option | Price per generation |
|---|---|
| Standard | $0.01 |
Quick start
Full API reference →1curl -X POST https://api.api-stock.com/api/v1/generation/create \2 -H "Authorization: Bearer $API_STOCK_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "z-image",6 "input": {7 "prompt": "A cinematic shot of a city at dusk",8 "size": "1:1"9 }10 }'
Parameters
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
prompt | string | Yes | — | Text description for image generation |
urls | string[] | No | — | Optional reference image for editing (exactly one URL). Providing it switches the request to image editing. |
size | string | No | 1:1 | Image aspect ratio. Required for text-to-image; optional for image editing (defaults to following the reference image).One of: 1:1, 4:3, 3:4, 16:9, 9:16 |
enableSafetyChecker | boolean | No | — | Enable the model's safety checker (defaults to true) |
Frequently asked questions
How much does Z-Image cost?
Z-Image starts at $0.01 per generation through the API Stock API. You pay per use from a single prepaid balance — there is no subscription — and the final price scales with parameters such as resolution or duration.
How do I call the Z-Image API?
Send a POST request to https://api.api-stock.com/api/v1/generation/create with your API key and the model id "z-image". The call returns a task id you poll, or a webhook callback when the result is ready. A ready-to-run example is in the quick start above.
What input parameters does Z-Image accept?
Z-Image accepts 4 input parameters, including the required field(s) prompt. Their types, defaults and allowed values are listed in the parameters table above.
What happens if a Z-Image request fails?
API Stock automatically retries the request on a reserve provider. If every provider fails, the charge is refunded to your balance.
Can I use Z-Image with the same API key as other models?
Yes. Every model on API Stock — video, image, music and chat — shares one API key and one prepaid balance, so you can switch to Z-Image without new credentials.
Other Image models
- Nano Banana 2 LiteGoogle$0.005/ generation
- GPT Image 2.5 FlareOpenAI$0.01/ generation
- GPT Image 2.5 SunburstOpenAI$0.01/ generation
- GPT Image 2OpenAI$0.013/ generation
- Nano BananaGoogle$0.015/ generation
- Grok Imagine 1.5 ImagexAI$0.023/ generation
- Grok Imagine 2.0 ImagexAI$0.023/ generation
- Nano Banana 2Google$0.023/ generation
- Wan 2.7 ImageAlibaba$0.029/ generation
Guides
- Image generationWhich image model to use for the picture you need, prompts that produce it, batching for variants, and the API run from prompt to file URL.8 min read
- Image editingEditing photos with references instead of prompts — background swaps, product composites, style matching, and the Midjourney action chain from imagine to inpaint.8 min read
- GPT Image 2.5 — Sunburst, Flare, prompts and real examplesChoose a GPT Image model, compare Sunburst and Flare, copy four practical prompts, inspect six real renders, and generate or edit images through API Stock.9 min read