Seedream 4.0: State-of-the-Art Image Generation Model Now Available

Date: 2025-10-01

We're excited to announce the addition of Seedream 4.0 (seedream-4-0-250828), the latest state-of-the-art image generation and editing model from ByteDance, now available through AvalAI via our new BytePlus provider integration.

What is Seedream 4.0?

Seedream 4.0 represents a significant advancement in AI-powered image generation technology. Developed by ByteDance and accessible through their BytePlus platform, this model offers unprecedented capabilities for both text-to-image generation and image-to-image editing tasks.

Key Features and Capabilities

🎨 Advanced Generation Modes

• Single Image Generation: High-quality individual images from text prompts
• Sequential Image Generation: Batch generation of thematically related images (up to 15 images)
• Multi-Image Blending: Combine multiple reference images (2-10) with text prompts
• Image-to-Image Editing: Transform existing images with text guidance

🚀 Technical Excellence

• High Resolution Support: Generate images up to 4K resolution (4096x4096 pixels)
• Flexible Aspect Ratios: Support for various aspect ratios from 1:16 to 16:1
• Multiple Input Formats: Support for both Base64 and URL image inputs
• Streaming Output: Real-time image generation with progressive results

⚡ Advanced Parameters

• Sequential Generation Control: Automatic batch generation with customizable limits
• Watermark Options: Optional AI-generated watermarks
• Response Formats: Both URL and Base64 JSON output formats
• Size Specifications: Support for 1K, 2K, and 4K resolution presets

Pricing

Seedream 4.0 is available at $0.03 per image for both generation and editing operations, making it one of the most cost-effective premium image generation models available.

Getting Started

Basic Text-to-Image Generation

from openai import OpenAI

client = OpenAI(api_key="your-avalai-api-key", base_url="https://api.avalai.ir/v1")

response = client.images.generate(
    model="seedream-4-0-250828",
    prompt="A futuristic cityscape at sunset with flying cars and neon lights",
    size="4K",
    response_format="url",
    extra_body={"sequential_image_generation": "disabled", "watermark": False},
)

print(f"Generated image: {response.data[0].url}")

Image-to-Image Editing

response = client.images.edit(
    model="seedream-4-0-250828",
    image=open("input_image.png", "rb"),
    prompt="Transform this into a cyberpunk style artwork",
    size="2K",
    response_format="url",
    extra_body={"sequential_image_generation": "disabled", "watermark": False},
)

print(f"Edited image: {response.data[0].url}")

Sequential Image Generation

response = client.images.generate(
    model="seedream-4-0-250828",
    prompt="A series of landscape paintings showing the four seasons",
    size="2K",
    extra_body={
        "sequential_image_generation": "auto",
        "sequential_image_generation_options": {"max_images": 4},
        "watermark": False,
    },
)

for i, image in enumerate(response.data):
    print(f"Season {i+1}: {image.url}")

Use Cases

Seedream 4.0 excels in various applications:

• Creative Content Creation: High-quality artwork, illustrations, and concept art
• Marketing Materials: Product visualizations, promotional graphics, and brand assets
• Content Enhancement: Image editing, style transfer, and visual improvements
• Batch Processing: Creating series of related images for storytelling or campaigns
• Prototyping: Quick visualization of ideas and concepts

Best Practices

1. Detailed Prompts: Use descriptive prompts (up to 600 English words) for best results
2. Resolution Planning: Choose appropriate resolution based on your use case
3. Sequential Generation: Use batch generation for related image series
4. Image Quality: Ensure input images meet format requirements (JPEG/PNG, max 10MB)
5. Aspect Ratios: Consider the intended display format when selecting dimensions

Integration with AvalAI

Seedream 4.0 integrates seamlessly with AvalAI's unified API, supporting:

• OpenAI-Compatible SDK: Use familiar OpenAI client libraries
• Direct API Calls: RESTful API access with standard endpoints
• Multiple Formats: Support for both v1/images/generations and v1/images/edits
• Streaming Support: Real-time image generation with progressive updates

What's Next?

This addition marks AvalAI's commitment to providing access to the latest and most advanced AI models. Seedream 4.0 joins our comprehensive suite of image generation models, offering developers and creators more choices for their specific needs.

Getting Started

Ready to try Seedream 4.0? Check out our comprehensive documentation:

• BytePlus Models Documentation
• Image Generation Guide
• API Reference
• Seedream 4.0 Examples

Start generating stunning images with Seedream 4.0 today through AvalAI's unified API platform.

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For technical support or questions about Seedream 4.0, please refer to our documentation or contact our support team.