doubao-seedance-4-5

Seedream 4.5 API delivers ByteDance's cutting-edge text-to-image generation. Create 4K resolution images with precise text rendering, multi-reference style fusion, and unified editing capabilities.

4K Generation

Text Rendering

Batch Processing

Reference Images

Image Editing

Pricing: $0.025 / Per Image

Input

Model

Prompt

Size

Number of Images

Prompt Optimization

Sequential Generation

Watermark

Reference Image

Click to upload image

JPEG, PNG, or WebP (max 10MB each, up to 10 images)

Output

No image generated yet

Your generated image will appear here

Seedream 4.5 API - Generate 4K AI Images with Perfect Text

APIMart provides instant access to ByteDance Seedream 4.5 API. Generate professional 4K images with industry-leading text accuracy, batch up to 15 outputs per request, and leverage 10 reference images for consistent brand visuals.

Get API Key

50K+

Active Users

99.9%

Uptime

Faster

70%

Cost Savings

Why Choose Seedream 4.5 API on APIMart

Enterprise-grade image generation for developers and businesses

Cost-Effective Pricing

Generate images at just $0.025 each via APIMart. No monthly subscriptions or hidden fees - pay only for what you create.

Official ByteDance API

Direct integration with ByteDance official channels ensures 99.9% uptime, stable performance, and enterprise-grade reliability.

Perfect Text Rendering

Seedream 4.5 excels at generating accurate text in images. Create posters, banners, and marketing materials with readable typography.

Batch Image Generation

Generate 1-15 images in a single API call. Perfect for A/B testing designs, creating product variations, or scaling content production.

10 Reference Images

Upload up to 10 reference images for style consistency. Maintain brand identity across all generated visuals.

4K Ultra-HD Output

Generate images in stunning 4K resolution. Seedream 4.5 produces print-ready, professional quality visuals.

Generate + Edit in One

Unified architecture supports both creation and editing. Remove objects, replace backgrounds, or refine images with simple prompts.

What You Can Create with Seedream 4.5 API

Versatile image generation for every industry

Marketing Campaigns

Generate ad creatives, social media banners, and promotional materials with accurate text overlays and brand consistency.

E-commerce Visuals

Create product photography, lifestyle shots, and packaging mockups. Use reference images to maintain catalog consistency.

Social Media Content

Produce engaging posts, stories, and thumbnails at scale. Batch generation enables content calendars in minutes.

Brand Asset Creation

Transform concepts into on-brand visuals using reference images. Ensure visual consistency across all touchpoints.

Educational Materials

Generate diagrams, infographics, and illustrations. Knowledge-driven capabilities ensure accurate visual representations.

Multi-Panel Layouts

Create comics, storyboards, and grid compositions. Maintain character consistency across sequential panels.

Start Using Seedream 4.5 API Today

Generate your first 4K image in minutes

Create Account

Add Balance

Top up your account balance. Pay-per-use pricing at just $0.025 per image.

Get API Key

Generate your unique API key from the dashboard for authentication.

Generate Images

POST to /v1/images/generations with your prompt. Receive task_id and poll for 4K results.

Developer Reviews

What developers say about Seedream 4.5 API on APIMart

"The text rendering in Seedream 4.5 is remarkable. We generate promotional banners with accurate headlines and CTAs - something we couldn't achieve reliably with other models."

Alex Thompson

Marketing Tech Lead

"Batch generation of 15 images per call transformed our workflow. We create entire product catalog variations in minutes instead of hours."

Jessica Park

E-commerce Developer

"Reference image support keeps our brand consistent. Upload our style guide assets, and every generated image stays on-brand automatically."

Ryan Chen

Creative Director

"4K output quality exceeded our expectations. We're using Seedream 4.5 for print materials that require high resolution without any upscaling artifacts."

Maria Santos

Design Studio Owner

"$0.025 per image with this quality level is unbeatable. We migrated from a $300/month platform and now spend less while generating more content."

Kevin Wu

Startup CTO

"The unified edit and generate capability means one API for everything. Simplified our entire image pipeline by removing three other services."

Emma Liu

Backend Engineer

"The text rendering in Seedream 4.5 is remarkable. We generate promotional banners with accurate headlines and CTAs - something we couldn't achieve reliably with other models."

Alex Thompson

Marketing Tech Lead

"Batch generation of 15 images per call transformed our workflow. We create entire product catalog variations in minutes instead of hours."

Jessica Park

E-commerce Developer

"Reference image support keeps our brand consistent. Upload our style guide assets, and every generated image stays on-brand automatically."

Ryan Chen

Creative Director

"4K output quality exceeded our expectations. We're using Seedream 4.5 for print materials that require high resolution without any upscaling artifacts."

Maria Santos

Design Studio Owner

"$0.025 per image with this quality level is unbeatable. We migrated from a $300/month platform and now spend less while generating more content."

Kevin Wu

Startup CTO

"The unified edit and generate capability means one API for everything. Simplified our entire image pipeline by removing three other services."

Emma Liu

Backend Engineer

Seedream 4.5 API FAQ

Your questions answered

What is Seedream 4.5 API and what makes it special?

Seedream 4.5 API is ByteDance's advanced text-to-image model available through APIMart. It features 4K resolution output, industry-leading text rendering accuracy, support for up to 10 reference images, batch generation of 1-15 images, and unified generation plus editing in one model. These capabilities make it ideal for marketing, e-commerce, and content creation.

How do I get started with Seedream 4.5 API?

Getting started is simple: 1) Sign up for a free APIMart account, 2) Add funds to your balance, 3) Generate your API key from the dashboard, 4) Make a POST request to /v1/images/generations with your prompt. Check our documentation for code examples in Python, JavaScript, and cURL.

What is the pricing for Seedream 4.5 API?

Seedream 4.5 API costs $0.025 per generated image through APIMart. When using batch generation (n=1-15), you're billed per image produced. No subscription fees, no minimum commitments - pay only for what you use. This makes it one of the most affordable 4K image generation APIs available.

How do I write effective prompts for Seedream 4.5?

For best results: Use natural language with structure (Subject + Style + Details). Be specific rather than vague. For text in images, use double quotes like "Your Text". Include style references (watercolor, cyberpunk, photorealistic). Avoid overloading prompts - concise descriptions often work better than complex ones.

How do reference images work with Seedream 4.5 API?

Upload up to 10 reference images via URLs in your API request. Seedream 4.5 extracts style elements, character features, and visual themes to maintain consistency. Use cases include brand asset matching, character series, product line consistency, and style transfer applications.