Seedream v4.5 vs Z-Image Turbo

We ran both models through 10 prompts and measured the results. Below you'll find the actual outputs, generation times, and our notes on each.

Quick Verdict
10 prompts tested Jan 2026
Seedream v4.5 Better photorealism, Better text rendering
Z-Image Turbo Faster generation
Winner Score 8-2 (Seedream)
Avg Speed Seedream: 15.9s
Avg Speed Z-Image: 1.5s
Best at Text Seedream
Best at Photos Seedream

Specs

What each model can do.

Feature Seedream v4.5 Z-Image Turbo
Text-to-Image Yes Yes
Image-to-Image Yes No
Max Resolution 4K (4096×4096) 4K (4096×4096)
Average Speed 15.9s 1.5s
Cost via fal.ai
$0.04
per image
$0.005
per megapixel
Architecture Diffusion Diffusion (Turbo)
Providers fal.ai fal.ai

Use both models in VM Studio

Install VM Studio and compare Seedream v4.5 vs Z-Image Turbo on your own prompts.

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