H3 4K Detail Restorer
Upload a low-resolution render or portrait and reconstruct native 4K detail while keeping framing and identity intact.
or drop a file, paste an image or a link
PNG, JPG or WebP, up to 10 MB
No image? Try one of these
How it works
Powered by the 33.1B single-stream diffusion transformer with automatic aspect-ratio preservation and structure-locked reference encoding.
Add a photo
Upload a PNG, JPG or WebP up to 10 MB, or start with a sample.
Let it run
One click starts it. The result is saved to your creations.
Compare and download
Drag the slider to compare, then download the full image.
Geometry & Perspective Lock
Your uploaded file is encoded through the 16x spatial downsampling VAE so horizon lines, camera focal length, facial proportions and object silhouettes stay aligned from start to finish.
Zero Prompt Engineering Needed
Each preset applies a calibrated server-side instruction template tuned for 6-step and 8-step CFG-free checkpoints—converting untextured 3D clay renders, portraits or product shots in one click.
Private Cloud History & Refund Guarantee
Every finished 2K or 4K export is archived to your private Creations library. Credit costs are displayed upfront on the button, and any upstream provider failure automatically refunds your balance.