Seedream 4.0 AI Image Generator

Generate images with Seedream 4.0 by Bytedance on Patternful. With 4K resolution and advanced editing capabilities, Seedream 4.0 powers high-resolution image generation and editing with visual prompts and reference support. Its flexibility extends to any aspect ratio, ensuring precise creative control. Turn a text prompt into high-quality images in seconds, then download — free to use for personal and commercial projects.

Patternful AI — Seedream 4.0
Patternful AI — One Model to Generate and Edit

One Model to Generate and Edit

Seedream 4.0 handles text-to-image and general editing in the same place, so refining a result never means exporting it into a second model with a different look.

Patternful AI — The Canvas Fits Your Subject

The Canvas Fits Your Subject

Adaptive aspect ratio sizes the frame to what you asked for rather than forcing your composition into a preset crop, at any ratio you need.

Patternful AI — 4K Output With Visual Prompts

4K Output With Visual Prompts

Ultra-high-definition results, multi-image composition, and reference-supported add, remove, and restyle operations.

What You Can Make with Seedream 4.0

  • Marketing & Social Content

    Spin up on-brand visuals for ads, social posts, and campaigns in seconds. Seedream 4.0 turns a quick prompt into scroll-stopping imagery — no photographer or stock library needed.
  • Product & E-commerce Visuals

    Create clean product shots, lifestyle scenes, and hero images up to 4K for your store and listings. Generate variations fast, then upscale the winners for print and the web.
  • Concept Art & Design

    Explore ideas, moodboards, and illustrations before committing to a full design. Iterate on prompts with Seedream 4.0 to visualize characters, environments, and styles quickly.

Up to 4K

How to Generate Images with Seedream 4.0

  1. 1. Choose the Model

    Pick Seedream 4.0 in the Patternful AI Image Generator — no installs, it runs in your browser.

  2. 2. Describe Your Image

    Write a text prompt describing what you want, add reference images if you have them, and set the style, aspect ratio, and resolution.

  3. 3. Generate & Download

    Generate your image in seconds, then download it — ready for social, marketing, print, and the web.

Key Selling Points

Why Choose Seedream 4.0

Generate + edit in oneUnified model for text-to-image and general editingHighlight
Adaptive aspect ratioAuto-fits the canvas to your subject, any ratioHighlight
Native 4KUp to 4K ultra-high-definition output
Multi-image editingCompose and edit across several images
Visual promptsAdd, remove and restyle with reference support

Frequently Asked Questions

What is Seedream 4.0?

Seedream 4.0 is an AI image model from Bytedance, available in the Patternful AI Image Generator. With 4K resolution and advanced editing capabilities, Seedream 4.0 powers high-resolution image generation and editing with visual prompts and reference support. Its flexibility extends to any aspect ratio, ensuring precise creative control.

How do I generate an image with Seedream 4.0?

Open Seedream 4.0 in the Patternful AI Image Generator, write a prompt describing the image you want, set the style, aspect ratio, and resolution, then click generate. Your image appears in seconds, ready to download.

How much does Seedream 4.0 cost?

Seedream 4.0 costs 1 credit per image. New accounts include free credits so you can try it right away.

What resolution can Seedream 4.0 produce?

Seedream 4.0 generates images up to 4K. You can choose the resolution and aspect ratio before you generate, and upscale finished images for even more detail.

Can I use the images commercially?

Yes. Images you generate are royalty-free for both personal and commercial projects — you can edit, publish, and sell them.

Are my images private?

Yes. Patternful.ai prioritizes user data safety. Your images stay private and remain your property, and uploaded reference images are automatically removed from our servers after a short period.

Ready to Create with Seedream 4.0?

Open the AI Image Generator, write a prompt, and turn your idea into a finished image in seconds.