Seedream 4.0
Image Model
Text to Image
Image to Image
Introduction to Seedream 4.0 Image Generation
Seedream 4.0, the latest image generation model officially released by Volcano Engine, marks a significant upgrade in creative technology. For the first time, seedream 4.0 supports 4K resolution and multi-modal generation, allowing for combined text and image input with enhanced coherent output across multi-image editing and fusion workflows. Seedream 4.0's generation tool empowers designers, creators, and developers to effortlessly turn complex creative prompts into ultra-high-resolution visuals. With support for multi-image editing, reference-based generation, illustration-to-concept crafting, and intelligent image composition, seedream 4.0 creates precise, editable, and commercial-use-ready outputs with unmatched consistency and clarity.
Features of Seedream 4.0 for Creators

Multi-Image Input and Fusion Editing
Seedream 4.0 introduces powerful multi-image input and output capabilities, letting you combine, migrate, replace, and derive visual elements with ease. Unleash advanced compound editing through its intelligent fusion engine—perfect for creators needing scalable, multi-modal artwork. With seedream 4.0, push creative boundaries on complex synthesizing tasks while ensuring consistent subject design. Experience next-level image generation with seedream 4.0 and maximize your visual ideation.

Deep Intent Understanding through API
Seedream 4.0 features a breakthrough API that goes beyond Agent-level capability. It deeply understands vague, natural-language prompts—automating insertions, deletions, and replacements in your visuals. Whether you sketch poses or describe styles, seedream 4.0 translates your intent into precise visual outputs. Its intelligent design adapts aspect ratios and amounts, ensuring flow with scene-based prompts. Create professional-grade content faster with seedream 4.0’s smart generation tools.

4K Resolution and Text Accuracy for Business Use
Seedream 4.0 ensures performance that scales for enterprise-grade needs. With 4K ultra-HD output, tiny text accuracy, and reduced visual redundancy, this generation tool caters to brands prioritizing detail and efficiency. Seedream 4.0 optimizes textual clarity in visuals, solving common font rendering issues. Deliver high-resolution assets with seedream 4.0 that meet print-ready standards and commercial usage precision.
Seedream 4.0 on X: News and Insights
Seedream 4.0's YouTube Videos and Reviews


Frequently Asked Questions
What is Seedream 4.0 and what can it do?
Seedream 4.0 is an advanced multimodal image generation model created by Volcano Engine, supporting 4K outputs and capable of complex tasks such as multi-image composition, style transfer, and precise edits using simple language prompts.
How does Seedream 4.0 differ from earlier versions or similar tools?
Seedream 4.0 significantly enhances image generation with 4K resolution, better text accuracy, and consistency in subject representation, setting it apart from both previous Seedream models and other image AI tools on the market.
Is Seedream 4.0 free to use, and how does the credit system work?
Seedream 4.0 offers new users a free trial or complimentary credits upon registration. Subsequent usage requires credits, with details on consumption provided in the 'Generation' section of the Runcomfy AI playground site.
What kind of input formats does Seedream 4.0 support?
Seedream 4.0 supports a flexible range of inputs, including text prompts, images, or a combination of both, enabling users to perform complex edits like reference-based generation, image blending, and compositional transformations.
Can I create 4K images with Seedream 4.0?
Yes, Seedream 4.0 offers ultra-high-definition image generation with outputs up to 4K resolution, giving users greater clarity and more creative flexibility for detailed post-editing.
Who should use Seedream 4.0, and what are the common use cases?
Seedream 4.0 is ideal for creatives, marketers, designers, and developers needing advanced image generation, including ad visuals, product concept art, character design, and customized illustrations.
Is Seedream 4.0 accessible on mobile platforms?
Yes, Seedream 4.0 can be accessed through the Runcomfy AI playground's website, which functions smoothly on mobile browsers for on-the-go creativity.
What are the limitations or caveats of using Seedream 4.0?
While Seedream 4.0 excels in multimodal generation, users may encounter occasional delivery delays or need to adapt prompt wording for best results. Credit consumption for high-resolution tasks may also vary.
How accurate is text rendering in images generated by Seedream 4.0?
Seedream 4.0 has optimized its text generation capabilities, with significantly improved accuracy especially for small fonts, and greatly reduced issues related to text repetition.
Where can I send feedback or bug reports for Seedream 4.0?
If you encounter issues or have suggestions to improve Seedream 4.0, you can reach out directly via email at hi@runcomfy.com to help shape future upgrades.