DP/docs/ai/ark-seedream-5-update.md

Ark Seedream 5.0 Update

This project now aligns its generic image-generation flow with the current Ark Seedream 5.0 usage pattern.

What changed

• Single-image text-to-image is supported through the generic design-image endpoint.
• Reference-image generation is supported by passing the latest uploaded chat image into the image model.
• Multi-image generation is supported with Ark sequential image generation.
• When the requested image count is greater than 1, the backend collects stream events and returns a final image list to the chat UI.

Runtime mapping

• Backend image model entry:

  • Server/app/api/v1/ai_llm.py
  • Uses client.images.generate(...)
  • Supports:
    • sequential_image_generation="disabled" for single image
    • sequential_image_generation="auto" for multi-image
    • SequentialImageGenerationOptions(max_images=...)

• Generic API endpoint:

  • POST /ai/generate-design-images
  • File: Server/app/api/v1/ai_pattern.py

• Chat tool:

  • generate_design_images
  • File: Server/app/api/v1/ai_tools.py

• Frontend executor:

  • Designer/src/utils/aiToolExecutor.ts

Supported use cases

• "生成一张高级感海报背景图"
• "根据这张参考图出 4 张不同方向稿"
• "生成一组连贯插画"
• "做 3 张 KV 草案给我选"

Notes

• The current chat UI renders the returned image URLs directly inside the assistant conversation.
• The current implementation caps multi-image generation at 4 images per request.
• The project still uses the configured AI_IMAGE_EDIT_MODEL as the unified Ark image-generation model slot.