Seedream 4.0 AI

Seedream 4.0 AI is a freemium online AI image generator that creates and edits 2K HD images in about 1.8 seconds from text prompts or uploaded photos. It combines text-to-image generation, image-to-image editing, and multi-image reference in one browser-based tool.

What is Seedream 4.0 AI?

Seedream 4.0 AI is a browser-based AI image generator and editor. It accepts a text prompt of up to 500 characters or up to six uploaded images in PNG or JPG format (each no larger than 10 MB) and produces images at 1K, 2K, or 4K resolution. The platform supports English and Chinese interfaces and offers a freemium web model with free credits for new users.

What makes Seedream 4.0 AI stand out?

The main differentiator is speed: a 2K image is generated in about 1.8 seconds, which the platform describes as one of the fastest available. It also unifies text-to-image and image-to-image workflows in a single credit-based system.

• Ultra-fast generation — Produces 2K HD images in approximately 1.8 seconds per prompt.
• Multimodal editing — Refine or edit existing images with simple text descriptions, no technical terminology needed.
• Multi-image reference — Upload up to 6 images (PNG/JPG, max 10 MB each) to guide generation.
• Resolution presets — Choose 1K, 2K, or 4K output resolution per generation.
• Aspect ratio presets — Select from 1:1, 3:4, 4:3, 16:9, 9:16, 2:3, 3:2, and 21:9.
• Sequential generation — Let the AI decide how many images to produce from a prompt, with a maximum of 15 images per batch.
• Multiple artistic styles — Covers realistic, watercolor, cyberpunk, fantasy, and minimalist looks.
• Commercial-friendly output — The FAQ states generated images may be used for commercial purposes under the standard license.

Who should use Seedream 4.0 AI?

Designers and digital artists who need fast concept art or variations; marketers who want on-brand visuals without a photo shoot; content creators who need quick social media imagery; and anime or 3D artists who want consistent character shots from a single reference image. Each user can write a descriptive prompt or upload a starting image, adjust resolution and aspect ratio, and download a file in seconds.

What can you do with Seedream 4.0 AI?

• Designers: Generate concept scenes and backgrounds (for example, an ancient city at sunset or a cyberpunk metropolis) using text prompts or image references.
• Marketers: Create commercial visual assets from product photos or descriptive prompts, with resolution presets up to 4K and the ability to edit with text.
• Character artists: Upload a facial close-up and use image-to-image mode to produce multiple angles or poses of the same character, as demonstrated in user examples.
• Content creators: Batch-produce up to 15 variations of an idea in one run using sequential generation, then refine individual outputs with text prompts.

How does Seedream 4.0 AI work?

The workflow is three steps: first, enter or upload your input — a text prompt up to 500 characters, or up to 6 reference images; second, adjust settings such as resolution (1K/2K/4K), aspect ratio, and whether sequential generation is enabled; third, click Generate and download the result. Credits are consumed per generated image at 1 credit each, with free credits granted on signup.

Pricing

Seedream 4.0 AI is freemium. New users receive 1 free credit to start; paid subscription plans begin at $9.9 per month for 50 credits. Each generated image costs 1 credit.

FAQ

Is Seedream 4.0 AI free to use?

There is a free tier that gives new users 1 credit, enough to generate one image. After that, paid plans start at $9.9 per month for 50 credits; each generation costs 1 credit.

What resolution does Seedream 4.0 AI generate?

The generator offers 1K, 2K, and 4K resolution presets. The FAQ specifically describes 2K (2048 pixels) as the high-definition standard for professional use.

Can I use images from Seedream 4.0 AI commercially?

Yes, the FAQ states that images created with Seedream 4.0 AI can be used for commercial purposes under the platform's standard license. See the terms of service for specifics.

What input formats are supported?

For image-to-image generation, Seedream 4.0 AI accepts PNG and JPG files, up to 6 images at a time, each with a maximum file size of 10 MB.

What are the generation limits?

By default, one image is generated per prompt. With sequential generation enabled, the AI determines the number based on the prompt, up to a maximum of 15 images per run. The cost is 1 credit per generated image.