Can I use Seedream 5.5 for free?

Yes. New visitors can try Seedream 5.5 for free at 1K resolution on Img Creator AI. Generating at 1.5K or 2K, or making more images, requires an account and credits.

What's new in Seedream 5.5 compared with Seedream 5.0?

According to ByteDance, Seedream 5.5 keeps unedited areas pixel-identical for up to 100 editing rounds, renders dense small text more accurately, and produces more natural light, materials and skin. It is also about 40% faster than Seedream 5.0 Pro.

Can I edit my own photos with Seedream 5.5?

Yes. Switch to Image to Image, upload your photos and describe the change, such as replacing clothing, adding an object or changing the background. Click Continue Edit to keep refining the same image.

How many reference images can I upload?

You can upload up to 10 images per request in PNG, JPG, JPEG or WEBP format, up to 10MB each.

What resolutions and aspect ratios are supported?

Seedream 5.5 outputs images at 1K, 1.5K or 2K resolution. 4K was not offered at launch. You can choose 1:1, 4:3, 3:4, 16:9, 9:16, 2:3, 3:2 or 21:9, which covers social posts, product listings, phone wallpapers and wide cinematic banners.

Can I use Seedream 5.5 images commercially?

Commercial use depends on what you upload and the applicable terms. Make sure you have the rights to any reference images, and read our Terms of Service before using results in client or production work.

How long does a Seedream 5.5 image take?

Most images finish in a few seconds to about a minute, depending on resolution and how busy the service is.

How do I write a good Seedream 5.5 prompt?

Be specific about the subject, style, camera angle, lighting and background. Put any text you want shown in quotation marks. When editing, say both what should change and what must stay the same.

Is Seedream 5.5 better than GPT Image 2 or Nano Banana?

In ByteDance's own tests, Seedream 5.5 led GPT Image 2.5 and Nano Banana 2.1 on text rendering and realism, though these results have not been independently verified. Each model has its strengths, so on Img Creator AI you can try them side by side with the same prompt.

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Seedream 5.5 AI Image Generator & Editor Online

Q: What is Seedream 5.5?

Seedream 5.5 is ByteDance's latest AI image model, released in November 2026 by the ByteDance Seed team. It handles both text-to-image generation and image editing, and is known for stable multi-round edits, accurate small text and realistic lighting and skin.

Turn a prompt into a finished image, or edit your own photos round after round with ByteDance Seedream 5.5, which leaves the parts you didn't ask to change alone.

Prompt *

0/5000

Aspect Ratio

1:1

4:3

3:4

16:9

9:16

2:3

3:2

21:9

Resolution

1.5K

Background

Auto

Transparent

Opaque

Seedream 5.5 Example Gallery

Seedream 5.5 AI generated image example 1

Generated Image

Waiting for image generation

Enter a prompt and click Generate to start creating with Seedream 5.5

What Is Seedream 5.5?

Seedream 5.5 is the latest image generation and editing model from ByteDance's Seed team, released in November 2026. It follows Seedream 5.0 Pro and is designed for production work, where an image has to come out right and stay right after many edits, rather than for one-off experiments.

On Img Creator AI you can use Seedream 5.5 in your browser with nothing to install. Write a prompt to create a new image, or upload up to 10 reference photos and describe the change you want. Pick an aspect ratio and a 1K, 1.5K or 2K resolution, and download the result when it's done.

How to Use Seedream 5.5 Online

Go from idea to finished image in three steps.

Choose a mode

Use Text to Image to create something from scratch, or switch to Image to Image and upload up to 10 reference photos, such as a product shot, a face or a style sample.

Write your prompt

Describe the subject, style, lighting and any text that should appear in the image. When editing, say what to change and what to keep. Then pick an aspect ratio and a resolution.

Generate and keep editing

Click Generate and download your image. Need another change? Click Continue Edit to refine the same image again without starting over.

Key Features of Seedream 5.5

Stable editing over many rounds

ByteDance says Seedream 5.5 can edit the same image up to 100 times while the areas you didn't touch stay identical down to the pixel, with no color drift. You can change an outfit, swap a prop or fix a detail and keep the rest of the image as it was.

Sharp, accurate small text

Dense and small text renders more cleanly, including complex Chinese characters. ByteDance reports serious text errors in only 0.4% of its test images, so menus, posters, packaging, slides and infographics need fewer fixes.

More natural photorealism

Light, materials and skin texture look more true to life, with less of the oily, overexposed look common in AI portraits. That makes it a good fit for product photos, fashion shots and lifestyle images.

Multi-reference image editing

Upload up to 10 reference images in one request to combine a product, a model, a background and a style. Seedream 5.5 keeps faces, logos and other key details consistent across the result.

Made for real production work

ByteDance tested Seedream 5.5 on e-commerce, marketing, film and TV, games, office documents and fashion design, and its expert raters scored it above Seedream 5.0 Pro in all six areas.

Faster and cheaper than Seedream 5.0 Pro

ByteDance says Seedream 5.5 generates images about 40% faster than Seedream 5.0 Pro and costs about 60% less per 2K edit. That means quicker iteration and lower credit costs for you.