Image Model

Seedream 4.5

ByteDance's 4K Image Model — 2K in Under 1.8 Seconds

Seedream 4.5 by ByteDance generates 2K resolution images in under 1.8 seconds and scales to 4K. It accepts up to 10 reference images as input and can output up to 6 images per generation for batch workflows. Built for precise instruction-based editing, strong feature preservation, and knowledge-based generation — it understands abstract concepts and converts them into accurate visuals.

Key Features

Ultra-Fast 2K Generation

Generates 2K resolution images in under 1.8 seconds — up to 4K for print-quality output.

Multi-Image Input & Output

Accepts up to 10 reference images as input. Generates up to 6 images per request for batch workflows — all consistent with each other.

Precise Instruction Editing

Natural language editing that preserves identity — change style, lighting, background without the over-processed AI look.

Knowledge-Based Generation

Understands abstract concepts, complex reasoning, and converts deep intent into visually accurate results — not just literal prompt matching.

How to Use

  1. 1

    Write Your Prompt

    Describe the image or edit you want. Use abstract or detailed language — Seedream 4.5 understands nuance.

  2. 2

    Add Reference Images

    Optionally upload up to 10 reference images to guide style, character, or composition.

  3. 3

    Generate & Download

    Get up to 6 consistent images in seconds at 1K, 2K, or 4K resolution.

Frequently Asked Questions

Everything about Seedream 4.5

Seedream 4.5 is ByteDance's fast, high-resolution image model. It generates 2K images in under 1.8 seconds, scales to 4K, and supports up to 10 input references and up to 6 output images per generation.
Extremely fast — 2K resolution in under 1.8 seconds. Even 4K generation is significantly faster than most comparable models.
Yes! Seedream 4.5 accepts up to 10 input reference images for style, character, or composition guidance. It preserves identity and features without the over-processed AI appearance.
Up to 6 images per generation, all consistent with each other — great for batch workflows and brand asset creation.

Start creating with Seedream 4.5

Free credits on signup. No credit card required.

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