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The Z Image API

Unleash the power of generative AI in your applications with the Z Image Turbo API. Built for scale, speed, and superior visual fidelity.

A sprawling cyberpunk metropolis at night, drenched in heavy rain. Towering brutalist skyscrapers covered in massive animated holographic advertisements and neon signs in Japanese and English. Flying vehicles with light trails weaving between buildings on multi-level highways. Below, crowded streets reflect the neon glow, filled with cyborgs, people with glowing techwear, and steam rising from vents. The aesthetic is gritty, detailed, dystopian, Blade Runner vibe. Cinematic lighting, volumetric fog, 8k resolution, highly detailed, photorealistic, Unreal Engine 5 render.

Parameters
size
1:1
nsfw_check
true
Estimated Cost
0.26 Credits
Sample Result
Sample generated image
576 (suggested: 2,000)
Generated image 1

History

Max 20 items

0 running · 0 completed

Your generation history will appear here
$

Pricing

Starting from
$0.004
0.26 Credits
per image
Guaranteed
99.9% Uptime
Powered by 14 redundant providers

Affordable Z Image Turbo API with Instant Online Testing

Experience the fastest integration path. Use our online playground to test photorealistic generation without any local setup, then deploy with our affordable, scalable infrastructure.

Affordable Z Image Turbo API with Instant Online Testing

What Can You Build with Z Image API?

High-Fidelity Text-to-Image

Transform raw text into professional-grade visuals instantly. The Z Image API leverages advanced diffusion models to interpret semantic nuances, generating photorealistic marketing assets and intricate illustrations that strictly adhere to your prompt descriptions. Perfect for automated content creation where quality cannot be compromised.

Explore Generation
example 2

Brand Style Consistency

Achieve uniform aesthetics without the need for reference images. By utilizing advanced prompt weighting and seed controls, developers can lock in specific artistic directions—from 3D minimalism to watercolor—ensuring every generated image aligns perfectly with your brand's visual identity across thousands of iterations.

View Style Docs
example 3

Scalable Batch Production

Built for high-volume demands. The Z Image API infrastructure allows you to generate thousands of variations simultaneously without bottlenecks. Whether you are populating a game world with unique assets or creating personalized ad variants for a mailing list, our parallel processing engine delivers results in seconds.

Check Concurrency
example 4

Why Choose Evolink's Z Image API?

We abstract the complexity of GPU cluster management so you can focus on shipping product features.

Unmatched Scalability

Building your own AI infrastructure is costly and complex. The Z Image API runs on Evolink.ai's auto-scaling GPU clusters, capable of handling thousands of concurrent requests without latency spikes. Whether you have ten users or ten million, our infrastructure grows with you.

Enterprise-Grade Reliability

Downtime is not an option for business-critical applications. We offer a 99.9% uptime SLA, redundant server architecture, and secure data handling. The Z Image API is designed for stability, ensuring your application delivers consistent results 24/7.

Developer-Centric Design

Time-to-market matters. Our Z Image API features comprehensive documentation, SDKs for Python and Node.js, and an intuitive dashboard. We prioritize developer experience with clear error handling, webhooks for async processing, and active community support.

How to Integrate Z Image API

Three simple steps to embed world-class AI generation into your software workflow.

1

Authenticate Your Access

Sign up on the Evolink.ai portal to generate your unique API key. This key secures your requests and grants access to the Z Image API sandbox. You can set usage limits, monitor token consumption, and manage team permissions directly from the dashboard to ensure secure and controlled integration.

2

Construct the Payload

Using our standardized JSON format, send a POST request to the Z Image API endpoint. Include your text prompt, desired parameters (like aspect ratio, seed, and style presets), and your API key in the header. Our documentation provides copy-paste code snippets for Python, JavaScript, and cURL to get you started instantly.

3

Retrieve & Deploy Assets

The API processes your request on our high-speed GPUs and returns a URL to the generated image or the base64 data. For heavy workloads, use our webhook system to receive notifications upon completion. Once retrieved, the image is yours to display, store, or modify within your user's interface immediately.

Read Full Docs

Powerful Features Under the Hood

Every tool you need to build robust, AI-powered visual applications.

Performance

Async Generation Pipeline

Prevent timeouts and improve user experience with our asynchronous processing mode. Submit heavy batch jobs to the Z Image API and receive callbacks via webhooks when the tasks are complete, keeping your UI responsive.

Customization

Custom Model Fine-Tuning

Need a specific art style or consistent character? The Z Image API supports LoRA and custom model loading, allowing you to generate images that strictly adhere to your brand guidelines or specific IP requirements.

Safety

Safe Content Filtering

Protect your brand and users with built-in safety layers. The Z Image API includes configurable NSFW filters and moderation endpoints to ensure all generated content meets community guidelines and legal standards.

Quality

Upscaling & Enhancement

Deliver print-ready quality. Our enhancement endpoints allow you to take standard outputs and upscale them to 4K resolution while refining details, perfect for merchandise printing or large-format digital displays.

Control

Negative Prompting Control

Tell the AI what strictly to avoid. The Z Image API accepts comprehensive negative prompts, giving developers granular control to prevent specific colors, objects, or distortions from appearing in the final output.

Versatility

Multi-Aspect Ratio Support

Generate content for any platform. Whether it's 9:16 for Stories, 16:9 for banners, or 1:1 for avatars, the Z Image API supports dynamic dimension settings without compromising composition quality.

Z Image API vs. Market Leaders

Benchmark performance against Nano Banana and Seedream architectures.

ModelDurationResolutionPriceStrength
Z Image API (Evolink)~3 Seconds (Optimized)Adaptive (Up to 4K)$0.0036 / imageBalanced Speed, Custom LoRA, Developer SDKs
Nano Banana (Flash)~1.5 Seconds1024x1024 Fixed$0.02 / imageExtreme Speed, Logical Coherence, Strict Safety
Seedream (Art)8-12 SecondsNative 4K$0.02 / imageHigh Artistry, Typography, Style Transfer

Frequently Asked Questions about Z Image API

Everything you need to know about the product and billing.

The Z Image API is a fully managed service powered by the cutting-edge open-source image generation architecture from Tongyi Lab. Evolink.ai acts as the infrastructure provider, deploying this powerful model on our optimized high-speed GPU clusters. We bridge the gap between complex open-source code and production apps by wrapping the technology in a simple, scalable REST API. This allows developers to access Tongyi's state-of-the-art capabilities instantly, eliminating the high costs and technical hurdles of self-hosting, server maintenance, and GPU provisioning.
Yes, absolutely. Evolink.ai grants full commercial rights to all images generated through the Z Image API, provided you possess a paid subscription plan. This means you and your users own the copyright to the visuals created, allowing you to use them for marketing materials, sell them as digital assets, use them in video games, or print them on merchandise without owing any royalties. We recommend reviewing our specific Terms of Service for niche use cases, but our general policy is 'your prompt, your creation'.
The Z Image API operates on a flexible credit-based system designed to accommodate everything from hobbyist projects to enterprise-scale deployments. Each API call consumes a specific number of credits based on the complexity of the task (e.g., standard resolution vs. upscaled 4K, or 20 steps vs. 50 steps). We offer a free tier for developers to test and prototype, followed by pay-as-you-go options and monthly subscription tiers that offer significant bulk discounts. This ensures you only pay for the compute resources you actually utilize.
The Z Image API is built as a standard RESTful API, making it language-agnostic and compatible with virtually any modern programming stack. Whether you are building a backend in Python (Django/Flask), Node.js, Ruby on Rails, Go, or a mobile app in Swift or Kotlin, you can easily integrate our service. To speed up your development, Evolink.ai provides official SDK wrappers for Python and JavaScript, along with a comprehensive Postman collection to help you test endpoints before writing a single line of production code.
Yes, maintaining visual consistency is a core strength of the Z Image API. We support advanced features such as 'Seed' control and 'Image-to-Image' guidance, which allow you to retain the composition and style across multiple generations. Furthermore, for enterprise clients, we offer the ability to load custom LoRA (Low-Rank Adaptation) models. This means you can train a lightweight model on your specific brand assets or art style and use the API to generate unlimited new variations that perfectly align with your established visual identity.
Speed is a priority for the Z Image API. For standard resolution images, our optimized inference engine typically delivers results in under 3-5 seconds. We also offer a 'Turbo' mode for use cases requiring near-real-time feedback, such as interactive avatars or live canvas tools. Our infrastructure is built on auto-scaling clusters, meaning we can handle sudden spikes in traffic—thousands of concurrent requests—without significant degradation in performance, ensuring your application remains responsive even during peak usage hours.
POST
/v1/images/generations

Generate Image

Create an image generation task using text prompts. Ultra-fast generation with exceptional quality.

Asynchronous processing mode, use the returned task ID to .

Generated image links are valid for 24 hours, please save them promptly.

Request Parameters

modelstringRequiredDefault: z-image-turbo

Image generation model name.

ValueDescription
z-image-turboUltra-fast image generation model
Examplez-image-turbo
promptstringRequired

Prompt describing the image to be generated.

Notes
  • Limited to 2000 characters
Examplea cat
sizestringOptionalDefault: 1:1

Size of the generated image. Supports two formats: aspect ratio (e.g., '16:9') or pixel dimensions (e.g., '1024x768').

ValueDescription
1:1Square
2:3Portrait
3:2Landscape
3:4Portrait
4:3Landscape
9:16Vertical
16:9Horizontal
1:2Tall Portrait
2:1Wide Landscape
Notes
  • Format 1 - Aspect Ratio: '1:1', '16:9', '9:16', etc.
  • Format 2 - Pixel Dimensions: 'WIDTHxHEIGHT' (e.g., '1024x768', '512x512')
  • Pixel range: 376-1536 for both width and height
Example16:9
seedintegerOptional

Random seed for reproducible results.

Notes
  • Range: 1 to 2147483647
  • Leave empty for random seed
  • Same seed with same prompt produces similar results
Example1
nsfw_checkbooleanOptionalDefault: false

Enable additional NSFW content moderation.

Notes
  • Default: false (disabled)
  • Basic content moderation is always active even when disabled
  • Enable for stricter content filtering
Examplefalse
callback_urlstringOptional

HTTPS callback address after task completion.

Notes
  • Triggered on completion, failure, or cancellation
  • Sent after billing confirmation
  • HTTPS only, no internal IPs
  • Max length: 2048 chars
  • Timeout: 10s, Max 3 retries
Examplehttps://your-domain.com/webhooks/image-task-completed

Request Example

{
  "model": "z-image-turbo",
  "prompt": "a cat",
  "size": "1:1"
}

Response Example

{
  "created": 1757165031,
  "id": "task-unified-1757165031-uyujaw3d",
  "model": "z-image-turbo",
  "object": "image.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 10
  },
  "type": "image",
  "usage": {
    "billing_rule": "per_call",
    "credits_reserved": 0.026,
    "user_group": "default"
  }
}