Seedream 4.5 Unified for Image Generation

HOW IT WORKS

Step 1. Write your prompt Describe the image you want, including any text you want rendered. Seedream 4.5 is known for legible, accurate typography, so spell out the exact words and where they go. Works great with: posters and logos · text and signage · product shots · detailed scenes

Step 2. Add a reference image (optional) Load an image to edit it or to pull a style. Leave it out to generate from the prompt alone.

Step 3. Hit run and download You get back a 2K image. Preview it in the workflow, then download. Ready for: Photoshop · Figma · Canva · any editor

First time? Leave every setting as-is. The defaults (2K · 2048 x 2048 · single · prompt only) are the right starting point for almost everyone.

RECOMMENDED SETTINGS

Quick-start guide. Find the goal that matches yours and copy the settings.

• Standard generation (most people) Start here — 2K · 2048 x 2048 · single. The right starting point for almost everyone.

• Rendering text in the image — Spell out the exact words and where they sit. Seedream 4.5 handles fonts, curved text, and small sizes well, so the more precise you are, the cleaner the type.

• Edit an existing image — Load it as a reference and describe the change. Background swaps, object removal, and style transfers all work from text.

• Combine images — Add a second reference to composite or transfer elements between images, with the lighting and perspective holding across them.

• Want a specific size or shape — Set the width and height, or pick a size preset. Seedream supports a range of aspect ratios, up to 4K on the model.

• Generate a batch — Switch batch mode on and raise the batch size for a set of consistent variations in a single run.

• Reproduce a result you liked — Use a fixed seed. The same prompt and seed give you the same image again.

Prompt: Be specific about the subject, the layout, and any text. Seedream 4.5 follows multi-part prompts well, so name the headline, the style, and the composition rather than leaving them to chance.

USE CASES

🎨 Posters & Branding Make designs, logos, and marketing graphics with accurate, readable text rendered directly into the image.

🛍️ Product & E-commerce Generate product visuals and batch out consistent variations for listings and campaigns.

✏️ Editing & Composites Swap backgrounds, remove objects, or transfer elements from a reference while the rest of the image holds.

🖨️ Print & Large-format Produce 2K and higher output that stays sharp at print sizes and on high-dpi displays.

WHAT WORKS BEST / WHAT TO AVOID

✅ Works great

• Images with text, signs, or typography

• Posters, logos, and layouts

• Multi-part prompts with clear structure

• Product shots and commercial visuals

⚠️ May produce softer results

• Long paragraphs of dense text

• Vague prompts with no layout

• Conflicting references in one edit

• Low-resolution reference inputs

NEW TO COMFYUI?

Start with the free ComfyUI for Beginners Course on Floyo. Sixteen short videos take you from zero to running your own AI workflows. No setup headaches, no jargon, clear hands-on lessons. Watch the course, then run any workflow here in your browser.

👉 Watch the free ComfyUI for Beginners Course →

FAQ

What is Seedream 4.5? Seedream 4.5 is a unified image model from ByteDance's Seed team, released in December 2025. It generates images from a prompt and edits images you provide, all in one model. It is best known for accurate, designer-level text rendering, along with high-resolution output and multi-image composition.

What is Seedream 4.5 best at? Text rendering. Where most image models produce garbled or misspelled text, Seedream 4.5 renders accurate, legible typography, including different fonts, curved and rotated text, and small sizes, in both English and Chinese. That makes it a strong fit for posters, logos, product labels, and any visual where the words have to be right.

Can Seedream 4.5 edit images, or only generate them? Yes. It is a unified model, so you can load a reference image and describe an edit in plain text: background swaps, object removal, style transfers, and element transfers between images. Add a second reference to composite, and the model keeps lighting and perspective consistent across the sources.

What resolution does this workflow output? It defaults to 2K at 2048 x 2048, and you can set other sizes and aspect ratios. The Seedream 4.5 model supports higher resolutions up to 4K, so step the size up when you need print or large-format output.

How is Seedream 4.5 different from Seedream 5.0 Lite? Seedream 5.0 Lite is the newer model and adds step-by-step reasoning and real-time web search, plus support for more reference images. Seedream 4.5 is the proven choice for text rendering and high-resolution commercial work. Use 4.5 when typography and clean layouts are the priority, and 5.0 Lite when you need reasoning or web-grounded generation.

Can I use the results commercially? Yes. Images you generate on Floyo carry full commercial rights, so you can use them in client work, products, ads, and print. You are responsible for having the right to use any images you upload as references.

How to run Seedream 4.5 online? You can run Seedream 4.5 online through Floyo. No installation, no setup, no API keys to wire up. Open the workflow in your browser, write a prompt, add any reference image, and hit run. Free to try.

WHY FLOYO?

Floyo is the only platform with team collaboration for ComfyUI in the browser. You run workflows with no install. You share run history, assets, and models across your team. You pay only when you generate. Floyo supports open-source and closed-source models.

A designer runs a prompt and likes the result. A teammate opens that exact run from shared history and keeps going. No file handoffs. No version confusion.

For studios and enterprise teams, Floyo adds private workspaces, pooled resources, and a team usage dashboard. Other ComfyUI cloud tools run for one person at a time. Floyo runs for the whole team, with transparent per-generation costs.

Ready to try it? Write a prompt or add a reference image, and run it. The settings are already set.

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Questions? Watch the free course or check the FAQ above.