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Seedream 4.5

by ByteDance

Multi-image reference, dense-text rendering, character continuity. ByteDance's upgraded Seedream image model, on Morphic.

Text-to-imageImage-to-imageMulti-image reference

Seedream 4.5

by ByteDance

Key features

What makes Seedream 4.5 stand out from other AI models

Technical specifications

Key specs and capabilities at a glance

Up to 2K

Resolution

High-resolution image output

T2I + Edit

Modes

Unified generation and editing

Multi-image

References

Multiple reference inputs supported

Identity + text

Strength

Subject continuity, dense text rendering

Use cases

How creators and businesses use Seedream 4.5 on Morphic

Multi-shot brand stories

Generate the same character or product across multiple scenes and angles for ad series, campaign rollouts, and social content with consistent identity.

Poster and packaging design

Build posters, packaging mockups, and editorial layouts where dense text and typography need to render cleanly inside the image.

Reference-led composition

Feed in a face, an outfit, and an environment as separate references, then have Seedream 4.5 combine them into a coherent final image.

Image-to-video key frames

Create art-directed key stills in Seedream 4.5, then carry them into Seedance for animation, the standard ByteDance image-to-video workflow on Morphic.

Prompt examples

Open any of these to tweak and generate

Multi-reference scene

Combine these references into one image: this character in this jacket, walking through this neon-lit alley, cinematic mid shot, rainy night

Edit prompt
Poster typography

Movie poster, retro 70s thriller, dense small text credits along the bottom, large title across the middle, grainy warm color palette

Edit prompt
Editorial still

Editorial portrait of a woman holding a vintage camera, side window light, muted earth tones, magazine cover composition

Edit prompt

FAQs

What is Seedream 4.5?
Seedream 4.5 is ByteDance's upgraded image generation model. It improves prompt adherence, multi-image reference handling, and dense text rendering while keeping text-to-image and editing unified in a single model.
How is Seedream 4.5 different from Seedream 4?
ByteDance positions 4.5 as an all-round improvement through overall scaling of the model, sharper detail preservation across multi-image references, enhanced typography and dense text rendering, and designer-level composition. Use 4.5 when identity continuity or typography in the image matters.
Does Seedream 4.5 support multi-image input?
Yes. You can pass in multiple reference images, the model identifies the main subject in each and composes a coherent output that preserves the important details from every reference.
How do I use Seedream 4.5 on Morphic?
Open Copilot, attach your references, describe the result, and pick Seedream 4.5. It's a strong default for brand series, poster work, and any prompt where the same subject needs to appear consistently across multiple images.
Can I edit images with Seedream 4.5?
Yes. The same model handles both text-to-image and image editing, so you can generate a base, then refine with targeted edits in the same conversation.
When should I pick Seedream 4.5 vs Seedream 5.0?
Use Seedream 4.5 when you want fast, high-fidelity multi-image composition and clean text rendering. Use Seedream 5.0 when you need the model to reason carefully, pull in current real-world context, or learn from example-based edits.

Try Seedream 4.5 on Morphic

Sign up for Morphic to start creating with Seedream 4.5. No downloads, no setup, just describe what you want and generate.