Models Seedream 4.0 Seedream 4.0 — AI Illustration & Creative Generator ByteDance Seedream 4.0: illustration-first engine with 1K, 2K, and 4K tiers. Text-to-image, image-to-image, editing, and optional sequential multi-image output. Reference guide on FreeMake.cc — compare with Seedream 4.5 and 5.0 Lite before you create. On this page
What is Seedream 4.0? Seedream 4.0 (API IDs such as `doubao-seedance-4-0`) is the prior generation of the Seedream creative line on APIMart. It supports nine aspect ratios including 21:9, up to 15 generated images per request, and sequential generation when reference images are provided — a solid choice for illustrated campaigns before upgrading to 4.5 or 5.0 Lite.
Creative-first Optimized for illustrated aesthetics rather than camera realism.
Up to 4K 1K / 2K / 4K resolution tiers with detailed pixel tables per ratio.
15-image batches Generate up to 15 images; references + n must stay ≤ 15 total.
Sequential mode With image_urls, auto sequential can output themed series for storyboards.
Anime & fan art Character scenes and promotional stills in cel-shaded styles.
Comics & covers 4K cover art and panel backgrounds with strong color.
Game concepts NPC portraits, props, and environment explorations.
Social series Sequential outputs for seasonal or episodic content.
1
Study the specs Check resolution, ratio, and whether you need references or sequential mode.
2
Write style prompts Include medium (anime, watercolor), character, palette, and mood.
3
Plan references Up to 15 combined references + outputs; use image_urls for consistency.
4
Create on FreeMake.cc Use Seedream 4.5/5 Lite in our generator when available, or read comparisons below.
Model Best for 4K illustration, 15-image batches, sequential with references. Refined 4.x default on FreeMake.cc with mature anime/illustration tuning. Newer line with 3K and lighter sequential workflows. Photoreal marketing and English text in images.
Seedream 4.0 vs 4.5? 4.5 is the newer tuned 4.x release; 4.0 remains useful for 4K illustration batches and legacy pipelines.
Sequential generation rules? Requires image_urls; pure text-to-image cannot output multiple sequential frames.
Max images per request? n from 1–15; total references + outputs must be ≤ 15.
Supported resolutions? 1K, 2K, and 4K with ratio-specific pixel maps in APIMart docs.
On FreeMake.cc generator? 4.5 and 5 Lite may appear in the workspace; this page documents 4.0 regardless.
Chinese prompts? Supported; Qwen is still best for hanzi inside images.
Commercial use? Review Terms of Service and APIMart billing for commercial projects.
Related AI models Compare capabilities and pick the best engine for your next brief.
Create for free on FreeMake.cc 1K without signup — your first image in under a minute.
