Seedream model guide

Seedream 5.0 Pro: What It Is and What It Can Do

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Seedream 5.0 Pro is a multimodal image model for generating and editing images, announced by the ByteDance Seed team on 8 July 2026. It turns text or up to 10 reference images into images at 1K, 1.5K or 2K, and it adds location-based editing, layer separation and text in many languages. BytePlus calls it the Seedream model creators can use today.

What Seedream 5.0 Pro is

Seedream 5.0 Pro is the high-precision member of the Seedream 5.0 generation.

  • Seedream 5.0 is a model generation, not one model. Documented variants include Pro, Lite and Flash.
  • Pro puts image quality first. Flash is the faster, lower-cost option.
  • Pro launched in July 2026 in China and in international markets at the same time.
  • Compared with earlier versions, it improves image-text alignment, structure, text rendering and visual quality.

What it can do

Seedream 5.0 Pro covers text-to-image, image-to-image and precise editing in one model.

TaskWhat the documentation says
Text-to-imageSupported
Image-to-imageOne or several reference images, up to 10
Resolution1K, 1.5K or 2K (2K is the default; 2048 × 2048 at 1:1)
Output formatPNG or JPEG
Location-based editingMark the spot with a box, point, arrow, sketch or coordinates, then describe the change
Layer separationSplit one image into a base image plus separate transparent layers
Text in imagesChinese and English, plus more than ten other languages such as Japanese, Korean, Arabic and Spanish
  • It is built for dense layouts: infographics, posters and pages with a lot of text.
  • It renders realistic lighting, materials and skin texture.
  • It makes one image per request. Batch sets and streaming are not supported yet.
  • It has no 4K tier. Seedream 5.0 Lite covers 2K to 4K.
  • Its developers say fine text and pixel-level edit consistency still have room to improve.

Where you can use it, and how it relates to 5.5

Seedream 5.0 Pro is available on creator apps and through an API today. Seedream 5.5 has not been released at the time of writing (October 2026).

  • Browser apps: Dreamina AI and Lumina let you generate and edit without code.
  • API: BytePlus ModelArk serves developers outside China; Volcano Engine serves China.
  • Versions before it: Seedream 4.0 arrived in September 2025 and 4.5 in December 2025. Seedream 5.0 Lite followed in February 2026.
  • No 5.5 specs have been confirmed. Our Seedream 5.5 release date page tracks what is confirmed.

How to write prompts for Seedream 5.0 Pro

Write full sentences that say what the image is for, not a list of keywords.

A pattern from the Seedream documentation:

Create [image type] for [purpose]. Show [subject and action] in [environment]. Use [style, color, lighting and composition]. Keep [fixed elements] and change [target elements].
  • Name the use. "A website hero image with space for a headline" works better than "a landscape".
  • Quote your text. Put every word that must appear in the image inside double quotation marks.
  • Say what each reference gives. For example: the product from image 1, the style from image 2.
  • Edit with clear verbs. Use add, remove, replace or change, and avoid vague words like "it".
  • Point, then describe. Circle or box the area, then write "Add a lamp inside the red box."
  • Check the result. Look over the text, faces and product details before you use the image.

You can try these prompts in your browser with our image-to-image tool, or see the full feature list.

FAQ

What is Seedream 5.0 Pro?
It is a multimodal image generation and editing model in the Seedream 5.0 generation. The ByteDance Seed team announced it on 8 July 2026.
What resolution does Seedream 5.0 Pro support?
1K, 1.5K and 2K, with 2K as the default. There is no 4K tier; Seedream 5.0 Lite goes up to 4K.
How many reference images can I use?
Up to 10 for image generation. Layer separation takes exactly one image.
What is the difference between Seedream 5.0 Pro and 5.0 Lite?
Pro adds location-based editing, layer separation and wider in-image language support. Lite adds batch output, streaming and 3K or 4K tiers. Both handle text-to-image and image-to-image.
Is Seedream 5.5 out?
Seedream 5.5 has not been released at the time of writing (October 2026). Specs and pricing are not confirmed.

Ready to make an image? Open the Seedream 5.5 Image Generator.

    Seedream 5.0 Pro: Features, Access and How It Relates to 5.5