ByteDance

Doubao Seedream 4.5 251128

ByteDancePer Request
Alias:doubao-seedream-4-5-251128
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Compare doubao-seedream-4-5-251128 API pricing, supported endpoints, capabilities and access options on Modelsell.

文生图图像编辑中文海报主体一致性
Starting price
Per Request
Context
—
Maximum input window
Modalities
→

Pricing by Supplier

标准按次
图片音频视频等多模态按次计费
Price$0.02/ request

Capabilities / Supported modalities

Vision
Input
Output

Provider & data privacy

Provider
ByteDanceDocs
Tokenizer
Doubao tokenizer
License
Proprietary (commercial)Proprietary
Data retention37 daysNot used for upstream training by default

Performance

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows

Metrics sourced fromArtificial Analysis 2026-09-30·Doubao Seedream 4.5 251128

This model is not included in the current benchmark snapshot.

Missing models or measurements are not zero scores.

Benchmark charts preserve the source model selection and reasoning settings. Missing models or measurements are not zero scores, and benchmark cost or speed is not this site’s service commitment.

About Doubao Seedream 4.5 251128

Seedream 4.5 支持图像生成与参考图编辑,适合需要兼顾文字、人物和视觉风格的创作。它强调提示词遵循、文字呈现与参考人物特征保持,可以用于活动海报、角色宣传图和风格统一的系列素材。

人物创作可以从清晰参考图开始,保留面部、发型和重要服装特征,再尝试新的背景与构图。制作系列视觉时,统一主体参考、光线和色彩说明,有助于让不同场景延续同一种感觉。面部、配件和手部仍需逐张比较,尤其是在大幅改变姿态或遮挡较多时。

带中文标题的图片,可以把文案原文、位置和层级写进提示。先让主体和标题各有清楚的空间,再补充装饰,比一次塞进大量文案更容易形成可读版面。复杂字体、密集正文与品牌标识,需要在生成后认真检查。

最高 4K 输出适合较清晰的人物海报、商品视觉和设计提案。分辨率提高并不会自动纠正内容错误,正式使用前仍要检查人物身份、文字和产品细节。已有满意设计时,限定每轮改动范围,能更方便保留好的构图与气氛。

Use cases and prompting

人物分享会宣传图

参考图提供讲者身份,保留面部特征、发型和深蓝色衬衫。制作竖版活动海报,人物位于下方偏右,背景为简洁米白色;上方标题只写“把经验讲清楚”,左下留出姓名与日期位置。自然柔光,不改变人物年龄,不增加其他文字。

确认人物后,再单独修改背景与标题位置。

人物保持要提供什么? 清晰、无遮挡、外观明确的参考图,并列出需要延续的特征。

4K 可以直接发布吗? 清晰度足够不代表细节正确,仍要检查面部、文字和标识。

系列图怎样统一? 复用人物参考与配色规则,一次改变一个场景或姿态。

API access

API documentation

Code samples

RequestPOST/v1/images/generations
Example request
Parameters
ParameterTypeDefault / rangeDescription
promptrequired
string—Text description of the desired image
size
enum
=1024x1024
Output image size
quality
enum
=standard
Generation quality preset
style
enum
=vivid
Aesthetic style
n
integer
=11 ~ 10
Number of images to generate
response_format
enum
=url
How to deliver the resulting image

Replace <YOUR_API_KEY> with the API key from your token settings.

Authentication

All requests must include Authorization: Bearer <TOKEN> header. Anthropic-formatted endpoints accept the x-api-key header instead.

Generate tokens from the Tokens page; you can scope them to specific models, groups, IPs, and rate-limits.

Supported parameters

Generation parameters
ParameterTypeDefault / rangeDescription
promptrequired
string—Text description of the desired image
size
enum
=1024x1024
Output image size
quality
enum
=standard
Generation quality preset
style
enum
=vivid
Aesthetic style
n
integer
=11 ~ 10
Number of images to generate
response_format
enum
=url
How to deliver the resulting image

Rate limits

SupplierRPMTPMRPD
标准按次UnlimitedUnlimitedUnlimited

No restriction

Frequently asked questions about doubao-seedream-4-5-251128

What is doubao-seedream-4-5-251128?

Compare doubao-seedream-4-5-251128 API pricing, supported endpoints, capabilities and access options on Modelsell.

How do I call doubao-seedream-4-5-251128?

Create an API key with access to doubao-seedream-4-5-251128, then use the exact model ID and a supported endpoint from the API access section. Request fields depend on the selected endpoint.

How is doubao-seedream-4-5-251128 priced?

Pricing depends on the selected provider group and the model billing unit. The current input, output, request, or media prices are shown on this page before sign-up.

How should I evaluate doubao-seedream-4-5-251128 for my project?

Start with the use cases and prompting guidance on this page, then evaluate the model with representative inputs from your project.