Seedream Image Generator
ByteDance's Seedream delivers state-of-the-art image generation with best-in-class text rendering, 4K native output, and unified generation-editing. Run Seedream V4 through V5 Lite available on ComfyUI Web.
Seedream on ComfyUI Web
Run Seedream models directly in your browser.
Seedream V5.0 Lite (Bytedance)
Lightweight text-to-image model by Bytedance with enhanced typography, clear text rendering, and up to 4K resolution. Ideal for posters, brand visuals, and social media content.
Seedream V5.0 Lite Edit (Bytedance)
Lightweight image editing model by Bytedance that preserves facial features, lighting, and color tones. Supports multi-image references, style transfer, and creative compositing up to 4K.
Seedream V4.5 (Bytedance)
Text-to-image model optimized for posters, branding layouts, and clean typography. Strong text rendering and layout control with fast generation.
Seedream V4 (Bytedance)
State-of-the-art text-to-image by Bytedance with fast inference and high-resolution output.
Seedream V4 Edit (Bytedance)
Edit images with Bytedance Seedream V4. Precise instruction editing with high feature retention and fast inference.
Why Use Seedream
Text to Image
Generate high-fidelity images from text prompts with accurate spatial relationships, lighting physics, and material properties. Seedream excels at complex compositions.
Image Editing
Seedream V4 Edit and V5 Lite Edit offer instruction-based image editing with high feature retention. Modify specific elements without degrading the rest of the image.
Best-in-Class Typography
Seedream achieves 99%+ spelling accuracy for text in images, supporting Chinese, English, and multilingual characters with dense multi-line layouts.
Fast Inference
Seedream's optimized architecture generates images in 2-3 seconds. Streaming generation delivers progressive previews during creation.
100% Cloud-Based
No GPU required, no local setup. ComfyUI Web runs Seedream on cloud GPUs — works on any device with a browser.
trial-credit tier Available
Start generating images with no credit card. trial credits refresh regularly. Paid plans from $9/month.
How to Use Seedream on ComfyUI Web
Generate your first Seedream image in under a minute.
Choose a Seedream Version
Seedream V5 Lite for the latest features and 4K output, V4.5 for balanced quality and speed, or V4 Edit for image modification tasks.
Write Your Prompt or Upload an Image
For text-to-image, describe your scene with details about composition, style, and mood. For editing, upload an image and describe the changes you want.
Generate & Download
Click generate. Seedream delivers results in 2-3 seconds with streaming preview. Download at full resolution in PNG format.
What Is Seedream?
Seedream is ByteDance's text-to-image and image editing model family. Developed by the same team behind Seedance (video), Seedream focuses on fast, high-fidelity image generation with particular strength in typography, spatial reasoning, and physics-aware rendering.
The model has evolved rapidly from V4 through V5, with each version bringing significant improvements in output quality, text rendering accuracy, and editing capabilities.
Seedream Versions Compared
Seedream V4 established the foundation with fast inference and high-resolution output. It delivers solid text-to-image generation with good prompt adherence and natural lighting.
Seedream V4.5 improved visual quality with better detail rendering, more accurate color reproduction, and enhanced composition control. It remains a good balance between speed and quality.
Seedream V4 Edit introduced instruction-based image editing, allowing you to describe changes in natural language while the model preserves unedited regions with high fidelity.
Seedream V5 Lite is the latest release, supporting native 4K output with adaptive aspect ratios, 99%+ text rendering accuracy, and multi-image reference inputs (up to 10 images) for complex compositions. It generates images in 2-3 seconds with streaming preview.
Typography and Text Rendering
Seedream's standout feature is its text rendering capability. While most AI image generators struggle with spelling and character placement, Seedream V5 achieves over 99% spelling accuracy across Chinese, English, and multilingual text.
This makes Seedream particularly valuable for generating posters, product labels, promotional graphics, social media images with text overlays, and any creative work that requires readable text within the generated image.
Seedream vs Flux and Other Image Models
Compared to Flux, Seedream offers faster inference (2-3 seconds vs 5-15 seconds) and superior text rendering. Flux provides a broader range of variants (Dev, Schnell, Kontext, Krea) and a more established community ecosystem.
Both are available on ComfyUI Web, so you can easily compare results on the same prompt. For text-heavy designs, Seedream has a clear edge. For general photorealistic generation with LoRA support, Flux Dev remains the community standard.
Frequently Asked Questions
- Is Seedream free to use?
- Yes. On ComfyUI Web, you get trial credits to generate Seedream images. No credit card required. Paid plans start at $9/month.
- What resolution does Seedream support?
- Seedream V5 Lite supports native 2K, 3K, and 4K output with multiple aspect ratios including 16:9, 4:3, 3:4, and 1:1.
- Can Seedream render text in images?
- Yes. Seedream V5 achieves over 99% spelling accuracy for text in images, supporting Chinese, English, and multilingual characters with dense multi-line layouts.
- What is the difference between Seedream V4 and V5?
- Seedream V5 Lite adds 4K native output, multi-image reference inputs (up to 10), streaming generation, and significantly improved text rendering compared to V4.
- Can Seedream edit existing images?
- Yes. Seedream V4 Edit and V5 Lite Edit accept image inputs with text instructions for editing. The model modifies specified elements while preserving unedited regions.
- How fast is Seedream?
- Seedream generates images in 2-3 seconds with streaming preview. It's one of the fastest high-quality image generation models available.
- Do I need a GPU to use Seedream?
- Not on ComfyUI Web. Our cloud GPUs handle all inference. You only need a browser on any device.