Seedream 4.0
High speed 4K AI image generation and editing model
Seedream 4.0 is ByteDance’s multimodal image model for fast 2K to 4K generation. It supports text prompts, image editing with natural language, and multi image reference. It maintains style consistency across batches and handles bilingual Chinese and English workflows.
Examples
README
Overview
Seedream 4.0 is an image generation and editing model from ByteDance, built for reliable text-to-image creation and image-guided refinement. It aims to produce clean, well-composed outputs across a wide range of visual styles, with an emphasis on consistent structure and predictable results when iterating.
Seedream 4.0 is a solid fit for everyday creative workflows such as concept visuals, marketing-style imagery, illustration, and design exploration. It works best when prompts clearly describe the subject, composition, and style, and when edits are approached as small, targeted changes rather than sweeping transformations.
How it Works
Seedream 4.0 combines language understanding with image synthesis and image-to-image refinement to generate new visuals or modify existing ones.
Prompt Interpretation
The model parses prompts to understand subjects, environment, composition, and stylistic direction. Clear prompts that specify relationships (foreground/background, camera angle, placement) tend to produce more predictable results than short, abstract descriptions.
Image Generation
Seedream 4.0 generates images with stable composition and consistent visual structure. It can produce both stylised and more realistic images depending on prompt framing, and it generally responds well to prompts that define lighting, viewpoint, and material detail.
Image Editing & Refinement
With an input image, Seedream 4.0 can perform image-guided transformations, allowing you to restyle a scene, adjust elements, or iterate on a concept while keeping key aspects anchored to the original image.
Key Features
-
Reliable Prompt-to-Image Output
Produces clear images with predictable structure when prompts are explicit and well-scoped. -
Image-Guided Workflows
Supports image-to-image refinement for controlled variations and restyling. -
Composition Stability
Handles common composition and layout instructions well, particularly when they’re described directly. -
Broad Style Coverage
Works across illustration, clean graphic styles, and more realistic looks depending on prompt guidance. -
Practical Iteration Loop
Designed for repeated iterations where small prompt tweaks should lead to understandable changes.
Technical Specifications
- Model Name: Seedream 4.0
- Model Type: Image generation and image editing
- Input: Text prompt with optional input image
- Editing Capabilities: Image-to-image transformations and targeted refinements
- Provider: ByteDance
How to Use
- Write a prompt describing the subject, scene, and style.
- Optionally provide an input image to guide the output or to iterate on an existing visual.
- Generate an initial result, then refine using small prompt updates rather than large changes.
- If you’re doing edits, keep the prompt aligned with what’s already present in the input image.
Example prompt:
A clean editorial illustration of a modern kitchen with soft daylight coming from the left, neutral colours, minimal clutter, and a balanced composition. Slightly elevated camera angle, smooth shading, and clear material separation between wood, stone, and metal.
Tips for Better Results
- Describe composition, not just style: viewpoint, framing, and subject placement often matter more than aesthetic keywords.
- Start simple, then layer detail: lock in the subject and layout first, then add lighting, materials, and mood.
- Be explicit about what to avoid: use a negative prompt to reduce text, watermarks, logos, or unwanted artefacts.
- When using an input image, stay consistent: don’t describe a totally different scene than what’s in the reference, or the model will either drift or produce unstable results.
- Iterate in small steps: change one variable at a time (lighting, background, style) to keep control.
Notes & Limitations
- Very complex scenes with many distinct subjects may require iteration for best results.
- Extremely fine typography or dense text layouts can still be challenging.
- Image-to-image refinement is most predictable when the prompt aligns closely with the reference image.
Documentation
You can find full usage details, parameters, and examples here: https://runware.ai/docs/en/providers/bytedance
More models from this creator
Seedream 5.0 Lite is an advanced image generation model from ByteDance that produces high-quality still images from text prompts while providing flexibility for editing workflows. It is designed to combine expressive creativity with precise control over layout, composition, styles, and details, interpreting nuanced instructions faithfully. Users can incorporate a single reference image to guide generation or editing. Integrated search and reasoning features let the model visualize real-time trends and domain information in the output.
Seedance 1.5 Pro is a next-generation AI video model from BytePlus that generates cinematic videos with native synchronized audio directly from text or image inputs. It offers precise audio-visual timing, strong motion coherence, expressive camera control, and advanced narrative prompt handling for short video creation.
Seedream 4.5 is a ByteDance image model for precise 2K to 4K generation and editing. It improves multi image composition, preserves reference detail, and renders small text more reliably. It supports up to 14 reference images for stable characters and design heavy layouts.
ByteDance Video Upscaler boosts video resolution to 1080p, 2K, or 4K with advanced denoising and motion enhancement. It restores color, reduces compression artifacts, and improves clarity for legacy films, UGC clips, and short narrative content through a simple API.
Seedance 1.0 Pro Fast accelerates the core Seedance pipeline for expressive dance and performance clips. It turns text prompts or reference images into smooth, cinematic motion with strong temporal consistency. Ideal for rapid iteration in creative tools and production workflows.
OmniHuman-1.5 generates high fidelity avatar video from a single image with audio and optional text prompts. It fuses multimodal reasoning with diffusion motion to keep identity stable, lip sync accurate, and gestures context aware for long, multi subject clips.
Seedance 1.0 Lite is a lightweight ByteDance model for fast video generation. It supports text to video and image to video with 720p output and short clip durations. It offers multi shot storytelling and strong prompt adherence for social content and rapid iteration.
SeedEdit 3.0 is ByteDance's high resolution image editing model for precise, prompt driven control. It preserves subjects and backgrounds while editing local regions. It supports 4K output, fast inference, and handles portrait edits, background changes, perspective shifts, and lighting tweaks.
Seedance 1.0 Pro is a ByteDance video model for 5 to 10 second clips at up to 1080p. It supports text prompts and image first frames. It delivers smooth motion with strong temporal consistency. Ideal for multi shot storytelling, ads, and design previews in real time pipelines.
Seedream 3.0 is a bilingual Chinese English text to image model that outputs native 2K images with fast generation speed. It focuses on accurate text rendering, reliable layout control, and strong adherence to complex prompts so developers can build high quality visual design tools.
OmniHuman-1 is a ByteDance research model for human video generation from a single image and motion signals like audio. It focuses on accurate lip sync, expressive motion, and strong generalization across portraits, full body shots, cartoons, and stylized avatars.