---
title: Gen4 Image Turbo — Fast AI Images | ModelsLab
description: Generate consistent, high-fidelity images with Gen4 Image Turbo. Use up to 3 references for character and location preservation. Try Gen4 Image turbo AP...
url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/gen4-image-turbo
canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/gen4-image-turbo
type: website
component: Seo/ModelPage
generated_at: 2026-05-21T09:25:39.794658Z
---

Available now on ModelsLab · Image Generation

Gen4 Image Turbo
Images Fast Consistent
---

[Try Gen4 Image Turbo](/models/runway_ml/gen4_image_turbo) [API Documentation](https://docs.modelslab.com)

![Gen4 Image Turbo](https://assets.modelslab.ai/generations/fce12230-39c7-461e-b737-3cc03b243f98.webp)

Iterate Images Rapidly
---

2.5x Faster

### Speed Over Gen-4

Gen4 Image turbo generates images 2.5x faster than Gen-4 Image for quick iteration.

Multi-Reference

### Up to 3 Images

Use up to 3 reference images to preserve characters and locations in Gen4 Image turbo model.

Conversational Prompts

### Natural Refinement

Refine outputs iteratively with natural language in Gen4 Image turbo API.

Examples

See what Gen4 Image Turbo can create
---

Copy any prompt below and try it yourself in the [playground](/models/runway_ml/gen4_image_turbo).

City Skyline

“Photorealistic city skyline at dusk, neon lights reflecting on glass towers, wide angle, high detail, cinematic lighting, no people”

Mountain Landscape

“Majestic snow-capped mountains under clear blue sky, alpine meadow in foreground, golden hour light, ultra detailed, serene atmosphere”

Abstract Geometry

“Minimalist geometric shapes in pastel colors, floating in void, soft gradients, modern art style, high resolution, symmetrical composition”

Tech Product

“Sleek wireless earbuds on marble surface, studio lighting, product photography, sharp focus, reflections, premium materials”

For Developers

A few lines of code.
Images seconds. Few lines.
---

ModelsLab handles the infrastructure: fast inference, auto-scaling, and a developer-friendly API. No GPU management needed.

- **Serverless:** scales to zero, scales to millions
- **Pay per image,** no minimums
- **Python and JavaScript SDKs,** plus REST API

[API Documentation ](https://docs.modelslab.com)

PythonJavaScriptcURL

Copy

```
<code>import requests

response = requests.post(
    "https://modelslab.com/api/v7/images/image-to-image",
    json={
  "key": "YOUR_API_KEY",
  "prompt": "A 24-year-old girl and a 24-year-old boy smiling together, sitting casually on the bonnet of a vintage car in an outdoor setting with some people visible in the background. The girl is wearing a t-shirt with the text “Gen 4 image turbo” written on it. The boy is wearing a different color t-shirt (not white) with the word “Models” in bold blue text and “Lab” in bold white text. Bright natural daylight, cinematic photography style, realistic skin tones, natural happy expressions, crisp details, high quality.",
  "init_image": "https://pub-3626123a908346a7a8be8d9295f44e26.r2.dev/generations/3feb43ab-ea3a-4c5e-9a74-8a18523edb5a.png",
  "init_image_2": "https://pub-3626123a908346a7a8be8d9295f44e26.r2.dev/generations/823b4e53-9434-4fdf-928c-ff7f082fde99.png"
}
)
print(response.json())</code>
```

FAQ

Common questions about Gen4 Image Turbo
---

[Read the docs ](https://docs.modelslab.com)

### What is Gen4 Image turbo?

Gen4 Image turbo is a fast image generation model, 2.5x faster than Gen-4 Image. It supports up to 3 reference images for consistency. Ideal for rapid visual iteration.

### How does Gen4 Image turbo API work?

Send text prompts and up to 3 reference images via gen4 image turbo api. It preserves character identity and locations. Outputs high-fidelity images quickly.

### What makes Gen4 Image turbo model unique?

Multi-reference support and conversational prompting set Gen4 Image turbo model apart. It maintains facial features across scenes. Faster than standard Gen-4.

### Is Gen4 Image turbo a good alternative?

Gen4 Image turbo alternative offers speed and cost efficiency for image generation. Use it for prototyping with references. Matches Gen-4 quality.

### How to use Gen4 Image turbo image generation?

Provide prompt and references for Gen4 Image turbo image generation. It handles natural language for refinement. Generates in seconds.

### What are gen4 image turbo api limits?

Gen4 image turbo api supports up to 3 references per call. Outputs in formats like PNG for transparency. Quality adjustable from 20-99.

Ready to create?
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Start generating with Gen4 Image Turbo on ModelsLab.

[Try Gen4 Image Turbo](/models/runway_ml/gen4_image_turbo) [API Documentation](https://docs.modelslab.com)

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*This markdown version is optimized for AI agents and LLMs.*

**Links:**
- [Website](https://modelslab.com)
- [API Documentation](https://docs.modelslab.com)
- [Blog](https://modelslab.com/blog)

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*Generated by ModelsLab - 2026-05-21*