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Complete Guide to Using Seedream 4.5 Edit

Precision image editing with Seedream 4.5 delivering up to 4K output and strong instruction following.

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Overview

Seedream 4.5 Edit combines the refined generation quality of Seedream 4.5 with dedicated image editing capabilities. It accepts a source image and a text description of desired changes, then produces an edited version at up to 4K resolution in High quality mode.

The model demonstrates strong instruction following, making precise edits as described while preserving unrelated areas of the image. It handles everything from subtle adjustments like lighting and color shifts to significant modifications like changing objects, backgrounds, or entire visual styles.

With multi-image input support, you can provide multiple reference images to guide the edit. This is particularly useful for style matching, where you want to edit one image to adopt the visual characteristics of another. The same aspect ratio and quality tier options from Seedream 4.5 text-to-image carry over to the edit variant.

Capabilities

  • Natural language image editing with up to 4K output
  • Strong instruction following for precise modifications
  • Multi-image input for style reference and guidance
  • Preservation of unrelated image areas during edits
  • Eight aspect ratio options for flexible re-framing
  • Two quality tiers: Basic (2K) and High (4K)

Use Cases

1

Professional photo retouching and enhancement

2

Style matching across a series of brand images

3

Background replacement and scene modification

4

Iterative refinement of AI-generated images at high resolution

5

Color grading and lighting adjustments

Input Parameters

prompt
textarearequired

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

Describe the changes clearly. Focus on what should be different from the source image. 'Replace the background with a mountain landscape at sunset' or 'Add soft rim lighting to the subject'. Maximum 3000 characters.

image_urls
filerequired

Upload image file(s) to use as input (JPEG/PNG/WebP, ≤10MB each, up to 14).

Upload the image to edit and optionally a style reference image. The first image is treated as the primary source.

aspect_ratio
selectrequired

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

Select the output ratio. Keep it the same as your source to preserve composition, or change it to re-frame the scene.

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 for iteration at 2K. High for production output at 4K with maximum detail.

Options
BasicHigh
Default: basic
NSFW Filter
toggle

Enable NSFW content filtering.

Default: false

Tips & Best Practices

One edit at a time for precision
Use High quality for detail-critical edits
Style reference workflow
Combine with text-to-image for full control

Related Models

Seedream 4.5

View Guide →

Seedream 5.0 Lite

View Guide →

Seedream 4.0 Edit

View Guide →