Seedream v4.5
Generate or edit images from text and up to 10 reference shots, with 2K or 4K output and flat per-image pricing.
Made with Seedream v4.5
Sample outputs. Open in Studio to generate your own.
Where Seedream v4.5 shines
Text to image
Turn a written prompt into a finished image at 2K or 4K in your chosen aspect ratio.
Reference editing
Attach up to 10 reference images to guide the result in image-to-image mode.
Concept variations
Generate up to 8 prompt variations in one request to explore directions fast.
Strengths
- Text-to-image generation straight from a prompt
- Image-to-image editing guided by up to 10 reference images
- Selectable 2K or 4K output resolution
- Eight aspect ratios from 1:1 to ultrawide 21:9
- Up to 8 prompt variations per request
- Flat, predictable per-image pricing
Trade-offs
- Image output only, with no video or audio
- Image-to-image mode requires attaching reference images; text-to-image is the default
At a glance
About Seedream v4.5
Seedream 4.5 is ByteDance's image model in the Seedream family, available on HexGen for both text-to-image generation and reference-guided editing. Write a prompt and it produces a fresh image; attach reference images and it switches to image-to-image mode, using your shots as visual guidance.
Pick the output you need: render at 2K or 4K, and choose from eight aspect ratios spanning square, portrait, landscape, and ultrawide 21:9. You can request up to 10 reference images per job and generate as many as 8 prompt variations in a single request, so exploring a concept stays quick.
Pricing is flat per image with no resolution, quality, or duration multipliers, so the cost stays predictable whether you render at 2K or 4K. Outputs come back as PNG or JPG, ready to download.
Starting points
Copy, tweak, and run. Good prompts get you most of the way there.
A cozy reading nook by a rain-streaked window, warm lamplight, stacked books, soft shadows, 4K, 3:2 aspect ratio.
Product shot of a matte ceramic coffee mug on a marble countertop, soft studio lighting, clean background, 1:1, 2K.
Wide cinematic landscape of misty pine mountains at dawn, layered fog, golden light breaking through, 21:9.
Pay only for what you render. 1 USD = 1,000 HGcoins. HGcoins never expire and failed runs refund automatically.
Seedream v4.5 vs other models
Seedream 4.5 sits among HexGen's image models from ByteDance and Google. Here is how it ranks against two siblings on quality, speed, and cost.
| Model | Quality | Speed | Cost | Choose it when |
|---|---|---|---|---|
Seedream v4.5 This ByteDance | Best | Fast | Mid cost | Pick this for high-resolution 2K or 4K images with reference-guided editing and flat, predictable per-image pricing. |
ByteDance | Great | Fastest | Lower cost | Pick the lighter Seedream option when you want faster, lower-cost image generation from the same family. |
Google | Best | Fast | Higher cost | Pick Google's Nano Banana Pro when you prefer that ecosystem for premium image work. |
Related models
Frequently asked questions
It generates images from a text prompt and can also edit or guide results using reference images. It produces image output only, with no video or audio.