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Bytedanceimage

Complete Guide to Using Seedream 4.5

Refined text-to-image generation with up to 4K output and stronger prompt consistency from ByteDance.

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Overview

Seedream 4.5 builds on the Seedream 4.0 foundation with refined generation quality, stronger prompt consistency, and support for output resolutions up to 4K. It is ByteDance's most detailed text-to-image model, designed for creators who need maximum visual fidelity.

The model excels at rendering complex scenes with accurate spatial relationships, realistic lighting, and fine texture detail. Its improved prompt consistency means it more reliably captures all elements described in the prompt, reducing the need for re-rolls and regeneration.

At 45.5 credits per generation, Seedream 4.5 is positioned between the budget-friendly Seedream 5.0 Lite and premium models from other providers. The ability to output at 4K in High quality mode makes it one of the highest-resolution text-to-image options on the platform.

Capabilities

  • Text-to-image generation with up to 4K resolution output
  • Enhanced prompt consistency for reliable multi-element rendering
  • Accurate spatial relationships and realistic lighting
  • Eight aspect ratio options including ultrawide 21:9
  • Two quality tiers: Basic (2K) and High (4K)
  • Fine texture detail and material rendering

Use Cases

1

High-resolution artwork for print and large displays

2

Detailed product visualization requiring fine textures

3

Architectural and environmental concept art

4

Marketing collateral for high-DPI screens and print

5

Portfolio-quality illustration and digital art

Input Parameters

prompt
textarearequired

A text description of the image you want to generate (max 3000 chars).

Write detailed, structured prompts. Seedream 4.5 has strong prompt adherence, so every detail you include will likely appear in the output. Maximum 3000 characters.

aspect_ratio
selectrequired

Width-height ratio of the image, determining its visual form.

Choose from 8 ratios. The model generates clean outputs at all ratios, but complex scenes benefit from wider formats that give elements more space.

Options
1:14:33:416:99:162:33:221:9
Default: 1:1
quality
selectrequired

Basic outputs 2K images, while High outputs 4K images.

Basic generates at 2K -- fast and good for iteration. High generates at 4K with significantly more detail, ideal for final production use.

Options
BasicHigh
Default: basic
NSFW Filter
toggle

Enable NSFW content filtering.

Default: false

Tips & Best Practices

Take advantage of 4K for detail work
Trust the prompt adherence
Compare with Seedream 5.0 Lite
Ultrawide for cinematic compositions

Related Models

Seedream 4.5 Edit

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Seedream 5.0 Lite

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Seedream 4.0 Edit

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