doubao-seedream-4-5-251128

Description

ByteDance Doubao Seedream 4.5 — text-to-image and image-to-image with multi-image fusion, producing either a single image or a set of related images. Single-image mode takes a prompt alone, one reference image, or 2-14 reference images; group mode (sequential_image_generation=auto) returns up to 15 images from text, up to 14 from a single reference image, or a set from 2-14 references where inputs plus outputs stay at or below 15. Supports 2K and 4K output and returns JPEG by default, as a URL or base64. Interactive coordinate-based editing is available only in Seedream 5.0 Pro (doubao-seedream-5-0-pro-260628).