Z-Image Turbo - 2K Upscaler

Z-Image Turbo — 2K Upscaler

Transform any image into a stunning high-resolution masterpiece with this two-stage upscaling workflow. Powered by the Z-Image Turbo diffusion model and RealESRGAN x4, it combines raw upscaling power with guided refinement to deliver sharp, detailed 2K results.

What This Workflow Does

The workflow runs in two smart stages. First, your input image is upscaled using RealESRGAN x4 — a best-in-class super-resolution model that recovers fine textures and edges. The upscaled image is then passed through Z-Image Turbo's KSampler with a low denoise strength (0.33), meaning it subtly refines and enhances details without altering the original composition. The result is decoded via a VAE and saved as your final high-res output.

• Input: Upload any image

• Stage 1: RealESRGAN x4Plus performs crisp 4× upscaling

• Stage 2: Z-Image Turbo (BF16) refines details using only 5 sampling steps

• Output: A clean, enhanced image saved at ~2K resolution

What Makes This Workflow Special?

Most upscalers just stretch pixels — this one thinks. By combining a dedicated super-resolution model with a fast diffusion pass at low denoise, it adds realistic texture and clarity that pure upscalers miss. The use of the Qwen 3 4B text encoder allows prompt-guided refinement, meaning you can subtly steer the enhancement direction. And with only 5 steps using DPM++ 2M SDE, it delivers premium results without long wait times.

Best Use Cases

• Restoring old or low-resolution photos

• Sharpening and enhancing AI-generated images

• Upscaling product photos for e-commerce or print

• Improving game screenshots or concept art

• Breathing new life into compressed or degraded images

• Preparing images for large-format printing