Seedream 4.0 AI Image Generator

Seedream 4.0 is ByteDance's mid-priced image model. Compare its bright, decorative style against the other models, then generate with it right here.

No sign-up needed: guests can make 5 images a day, with Seedream 5.0 Flash only. Outputs are up to 1024 px with a small "pixmint.ai" watermark, for personal non-commercial use. The other 6 models need a free account (50 credits on first sign-in plus 20 every day).

What is Seedream 4.0?

Seedream 4.0 is the 4.0 generation of ByteDance's Seedream image models. On Pixmint it sits between the free Seedream 5.0 Flash and Seedream 5.0 Pro in price, at 8 credits per image. It takes a text prompt, accepts up to four reference images and can be used to edit photos in the AI image editor.

What stands out in our examples is its taste. Given the same short prompt as the other models, Seedream 4.0 tends to add polish: more color, more decoration, a more designed composition. Whether that is a feature or a bug depends on your prompt. If you give it a precise brief it follows it; if you give it room, it fills the room.

Like the other Seedream models on Pixmint, it renders at around 2K resolution. Free-credit images are scaled to 1024 px with a small watermark.

Seedream 4.0 examples

These six images were generated with Seedream 4.0 on Pixmint. The exact prompt is printed under each one, and you can copy any of them into the tool above. Each prompt was run once, so treat the notes as impressions from a single sample, not as a benchmark.

Natural-light portrait of a woman by a cafe window, generated with Seedream 4.0
Portrait · Seedream 4.0Prompt: Natural-light portrait of a woman in her 30s by a cafe window, soft afternoon light, realistic skin texture, 50mm photoA wider cafe shot of a woman holding a cup, in warm tones.
White ceramic coffee mug product photo on a white background, generated with Seedream 4.0
Product photo · Seedream 4.0Prompt: E-commerce product photo of a white ceramic coffee mug on a pure white background, soft shadow, studio lightingA white mug on an off-white backdrop with a long, soft shadow.
Yellow poster with the text SUMMER SALE 50% OFF, generated with Seedream 4.0
Poster text · Seedream 4.0Prompt: Minimal poster with the exact text "SUMMER SALE 50% OFF" in bold sans-serif on a sunny yellow backgroundThe text is correct, but the layout is redesigned: small SUMMER SALE, a huge 50% OFF, plus palm leaves and sparkles we did not ask for.
Watercolor children's book illustration of a fox reading under a tree, generated with Seedream 4.0
Illustration · Seedream 4.0Prompt: Children's book illustration of a fox reading under a tree, watercolor, warm colorsA bright, airy watercolor with the fox surrounded by falling leaves.
Rainy Tokyo alley at night with lanterns and a cat under an umbrella, generated with Seedream 4.0
Night scene · Seedream 4.0Prompt: Tokyo alley at night in the rain with lanterns and a cat under an umbrella, cinematicThe most saturated night scene in the set, with a red umbrella and strings of lights.
Isometric 3D clay-style home office icon in pastel colors, generated with Seedream 4.0
3D icon · Seedream 4.0Prompt: Isometric 3D icon of a cozy home office, soft pastel colors, clay renderA pastel room with a pink armchair, bookshelves and a window; decorative and cheerful.

How these examples were made

ModelUpstream model ID calledAccess pathRequested size / quality
Seedream 4.0doubao-seedream-4-0-20260415Volcengine Ark API (mainland China site), direct1:1, 2048 x 2048 requested, downscaled to 1024 px for this site
  • Generated on 2026-10-22 on Pixmint with the prompt printed above each image. The same prompt text was used for every model.
  • One run per model per prompt, with no cherry-picking across runs.
  • The images on this site are downscaled JPEG copies of the generated files.
  • Limits: each image is a single sample, so it shows a tendency, not what the model does every time. GPT Image and Nano Banana requests go through a third-party relay and we cannot verify that it serves the unmodified official models. Speed and success rate were not measured, and these pages are not a benchmark.

How to use Seedream 4.0 on Pixmint

  1. Check the modelSeedream 4.0 is preselected in the tool at the top of this page. You can switch to any other live model in the list.
  2. Write a prompt or add referencesDescribe the image, or add up to four reference images. Choose the aspect ratio (1:1, 4:3, 3:4, 16:9 or 9:16) and one to four images.
  3. Generate and downloadPress Generate. The price (8 credits per image) is shown on the button first. Download your favorites, regenerate, or send a result to the AI image editor.

Seedream 4.0 strengths and best use cases

  • Color and mood. Vivid, cheerful palettes. The red-umbrella alley is the most colorful night scene of all seven models.
  • Designed-looking compositions. On the poster test it turned a one-line prompt into a layout with hierarchy and decoration.
  • Illustration and icon styles. Light, airy watercolors and pastel 3D rooms suit it well.
  • Mid-range price. At 8 credits it is cheaper than every OpenAI and Google model.

Social posts and promos

Colorful, attention-grabbing visuals.

Illustrations for blogs and kids' content

Bright watercolor and cartoon-like styles.

Pastel 3D icons and scenes

Soft rooms, objects and mascots.

Mood and concept exploration

When you want the model to bring ideas of its own.

Budget-conscious variations

Four options for 32 credits.

Things to know about Seedream 4.0

  • It adds decoration you may not want. When a layout must be exact, say so in the prompt ("no decoration, centered, plain background") or use a model that follows plain layouts more literally.
  • Highly photographic realism is not where it shines in our samples; the Nano Banana models and Seedream 5.0 Pro look more like photographs.
  • As a single sample per prompt, these observations show tendencies, not guarantees.

How Seedream 4.0 compares to other Pixmint models

Next to Seedream 5.0 Flash, which stays plain and literal, 4.0 is more ornamental and more colorful. Next to Seedream 5.0 Pro, which in our samples was darker, moodier and more detailed, 4.0 is lighter and sweeter.

Against GPT Image 2, which produced a designed, graphic look on the poster test, Seedream 4.0 is the cheaper way to get a decorated layout. Against the Nano Banana models it is less photographic and more illustrative.

The comparisons here are qualitative and based on the example images on this site. Image generation varies from run to run, so run your own prompt on two models before you commit. The models page lists every model with its price.

Seedream 4.0 pricing

Seedream 4.0 costs 8 credits ($0.08) per image. Four images in one go cost 32 credits ($0.32). Failed images are refunded automatically, so you only pay for images you receive.

One credit is worth about $0.01 at the planned list price. The signup bonus of 50 credits and the 20 daily credits are enough to try several of the paid models, and the photo tools cost 15 credits per run.

ModelMakerCredits per imageList price per image
Seedream 5.0 Flash (free tier)ByteDance5$0.05
Seedream 4.0 (this page)ByteDance8$0.08
Seedream 5.0 ProByteDance12$0.12
GPT Image 2OpenAI15$0.15
GPT Image 2.5OpenAI15$0.15
Nano Banana 2Google18$0.18
Nano Banana ProGoogle36$0.36

Planned paid plans (not available yet): 500 credits for $4.90, 1,100 credits for $9.90, 2,400 credits for $19.90, or a monthly plan of 1,200 credits for $9.90. Paid plans are planned but not available yet, so nothing can be bought today (see pricing). If the largest planned pack (2,400 credits) goes on sale, it would cover roughly 300 Seedream 4.0 images.

Guests (no account) get 5 free Seedream 5.0 Flash images and 3 photo-tool uses per day. Signed-in users get 50 credits on their first sign-in plus 20 credits every day. Free outputs are up to 1024 px with a small watermark and are for personal non-commercial use.

Seedream 4.0 FAQ

What is Seedream 4.0?

Seedream 4.0 is an image generation model from ByteDance. It is known on Pixmint for bright colors and decorative, designed-looking compositions.

How do I use Seedream 4.0?

Type a prompt in the tool at the top of this page, where Seedream 4.0 is already selected. Choose an aspect ratio and how many images you want, then press Generate. You will be asked to sign in (free) because only Seedream 5.0 Flash is open to guests.

Is Seedream 4.0 free on Pixmint?

Only Seedream 5.0 Flash is free for guests, so Seedream 4.0 needs a free Pixmint account. It costs 8 credits per image. New accounts get 50 credits on first sign-in plus 20 daily credits, which on the first day is enough for about 8 Seedream 4.0 images at no cost. Free images are up to 1024 px, carry a small watermark and are for personal non-commercial use.

Can I use Seedream 4.0 images commercially?

Not today. Images made with free credits carry a watermark. Commercial use is planned to come with paid plans, which are not available yet, so today free outputs are for personal, non-commercial use only. See our terms. You are responsible for making sure your prompt and any reference images do not infringe anyone else's rights.

Why does Seedream 4.0 add extra decoration?

Short prompts leave the model room to interpret. In our poster example it added palm leaves and sparkles. Add details such as "plain background, no decoration" to hold it back.

Is Pixmint affiliated with ByteDance?

No. Pixmint is an independent service that gives access to image models from ByteDance and other providers. Model names belong to their owners.

Try other models

Generate with Seedream 4.0

Edit the example prompt at the top of the page or write your own, then press Generate with Seedream 4.0.

Go to the Seedream 4.0 tool