Seedream 4.5 vs Flux 2

Seedream 4.5 by ByteDance generates 2K resolution images in under 1.8 seconds and scales to 4K. It accepts up to 14 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.

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 14 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.

Flux 2 by Black Forest Labs generates images from text and edits them with reference images. Three models cover different needs: Flux 2 Pro for high-quality images with excellent prompt adherence, Flux 2 Flex for flexible style transfer, and Flux 2 Klein for ultra-fast, lightweight generation with LoRA support. Add reference images and Flux 2 switches to edit mode automatically.

Reference-Based Editing

Add reference images to your prompt and Flux 2 switches to edit mode — up to 8 references with Pro and Flex.

Klein: Ultra-Fast Drafts

Flux 2 Klein is the lightweight, fastest Flux variant — built for quick drafts and rapid iteration, with LoRA support.

Pro: Prompt Adherence

Flux 2 Pro delivers high-quality images that follow your prompt closely — a strong fit for photorealistic product shots and marketing visuals.

Flex: Style Transfer

Flux 2 Flex specializes in flexible style transfer — match the look of your reference images or explore creative, artistic interpretations.