Seedream 4.0 AI Image Generator
Bring your boldest ideas to life with Seedream 4.0, released by ByteDance – the AI model built for creators who need 4K precision, multi-image guidance, and knowledge-backed accuracy. It makes image creation smarter, sharper, and more reliable than ever. Perfect for brand owners, content creators, illustrators, E-commerce, and gaming industries.
Creators Love Seedream 4.0
4K Ultra Output
Generate images in stunning 4K quality for details and professional-grade visuals.
Multi-Reference Input
Use multiple reference images to guide the AI, ensuring more accurate, coherent, and creative results.
Knowledge-Driven Generation
Create images powered by knowledge-based generation, delivering accurate text content.

Convert Text to Image Accurately
Besides standard text-to-image conversion tasks like “draw a cartoon dog,” Seedream 4.0 has updated its database, significantly boosting the accuracy of AI outputs. In short, you no longer need to provide lengthy explanations or reasoning processes. Simply tell the Seedream model your prompt, and it will filter relevant information to enhance the image content, driven by knowledge. Ideal for educational illustrations, infographics, and professional visuals.
Generate Images from One Photo—or Ten
Seedream 4.0 also provides the capability to create images from one or several references. You can upload one or several reference images and input your requirements. The AI image generator will generate an image precisely as you ordered. Its versatile multi-reference input function greatly simplifies complex image requests. You can upload up to 10 images, specify the elements you need on each image, and how they should be combined. The AI will generate stunning 4K quality results based on your description in just seconds.


Edit Images Based on Your Prompts
This new-generation AI model also supports one-word editing, like Nano Banana and Flux Kontext. Just tell Seedream 4.0 how you want to edit the selected image, and our AI will perfectly complete your request. Whether removing unwanted objects, changing hairstyles, or adding filters, with just one single command, you can experience the magic of AI.
Turn Your Ideas into 4K Realities with Seedream 4.0
Frequently Asked Questions
Have more questions? You can email service@aiease.ai, and we'll be happy to help you.
What is Seedream 4.0?
ByteDance's Seedream 4.0 is the next-generation AI image model. It combines generation and editing in one, which supports text-to-image, image-to-image, and prompt-based edits. The model is designed to be knowledge-aware, enabling it to understand your intent more deeply and deliver outputs with consistency and detail.
Is Seedream 4.0 better than Nano Banana and Flux Kontext?
"Better" depends on what you need. But Seedream 4.0 has a few clear strengths: Its knowledge-driven capability means it handles prompts involving text, branding, or knowledge elements more accurately than many competing models. While Nano Banana is praised for speed and ease of use, and Flux Kontext excels in fine control and realism, Seedream 4.0 aims to sit in between: offering great visual fidelity, multi-reference support, and editing flexibility. If you require both creative and precise control with complex prompts, Seedream 4.0 is your option.