POST https://api.goenhance.ai/api/v1/images/generations with model: z-image. Z-Image costs a flat $0.004 (0.2 tokens) per image—the lowest per-image price in the GoEnhance image catalog—and returns an async img_uuid for polling or callbacks.Z-Image API for Low-Cost Text-to-Image Generation
Generate images through
Create an API Key
A Focused Text-to-Image API
Prompt-First Generation
Use the required prompt field (1–2000 characters) to describe the image. The current unified endpoint requires model: z-image.
$0.004 Flat Per-Image Pricing
Every Z-Image generation costs 0.2 tokens, equal to $0.004. There are no resolution or volume tiers on this model, which makes cost estimation straightforward.
Use only the fields supported by the <code>z-image</code> request schema.
Z-Image API Parameters and Capabilities
Exact Model ID
Set <code>model</code> to exactly <code>z-image</code>. The page product name remains Z-Image.
Required Prompt
Provide a non-empty <code>prompt</code> from 1 to 2000 characters describing the image to generate.
Seven Aspect Ratios
Choose exactly one of <code>1:1</code>, <code>2:3</code>, <code>3:2</code>, <code>4:3</code>, <code>3:4</code>, <code>16:9</code>, or <code>9:16</code>. Omit <code>ratio</code> to use the model default.
Optional Callback
Set <code>custom_callback_url</code> to a public HTTPS endpoint to receive processing, success, and failure updates.
Text-to-Image Only
This route does not accept reference images or editing inputs. Use another GoEnhance image model when your workflow needs reference-driven editing.
Schema Validation
Unsupported ratios are rejected during schema validation before tokens are deducted. There is no <code>auto</code> or <code>21:9</code> ratio for Z-Image.
A single rate makes a cheap AI image generation API budget easy to calculate.
Simple, Flat Z-Image Pricing
$0.004 per Image
Each successful generation is priced at exactly $0.004 per image.
0.2 Tokens per Image
The same charge is 0.2 tokens. GoEnhance tokens are priced at $10 for 500 tokens, or $0.02 per token.
No Resolution or Volume Tiers
Z-Image has one flat per-image tier. The request does not expose a resolution parameter, and the published rate does not change by volume.
Integrate Z-Image in Three Steps
1
1. Submit a Prompt
Send an authenticated POST to
https://api.goenhance.ai/api/v1/images/generations with {"model":"z-image","prompt":"...","ratio":"16:9"}. 2
2. Save img_uuid
A successful submission returns
data.img_uuid. Store it with your application record instead of waiting synchronously for the image. 3
3. Poll or Receive a Callback
Poll
GET https://api.goenhance.ai/api/v1/jobs/detail?img_uuid=..., or register custom_callback_url and handle processing, success, and failure states.Use Z-Image where predictable per-image cost and a compact request shape matter.
Where a Low-Cost Text-to-Image API Fits
Content Illustrations
Generate visual concepts for articles, guides, and editorial workflows from text prompts.
Product Concepting
Create early visual directions for products, packaging, environments, or campaign themes before production.
Ad Creative Exploration
Produce distinct prompt-driven concepts for creative review while tracking a fixed cost per generated image.
Localized Visual Pipelines
Adapt prompts for regional themes and formats while selecting a supported landscape, portrait, or square ratio.
Background Generation
Generate scene backgrounds and atmospheric assets for downstream design workflows that do not require reference editing.
High-Volume Prototyping
Use the flat $0.004 rate to estimate prototype generation cost without resolution or volume-tier calculations.
Integration details for developers evaluating a low cost text to image API.