AI Image Upscaler enlarges photos and illustrations by 2× or 4× using super-resolution models that reconstruct detail rather than simply stretching pixels. Upload an image, choose a model and scale factor, and download a higher-resolution output. Two distinct modes are available: a pure resolution enhancer that faithfully preserves the original image, and creative enhancers that accept text prompts to guide the detail-generation direction.
Input size limits and the auto-scale effect
Most models accept a maximum input of 1,048,576 pixels (roughly 1024×1024). If you upload a larger image, the tool automatically shrinks it to fit before running the upscale — meaning the actual output dimensions may not be exactly twice the original. A 4000×3000 photo (12 megapixels) gets reduced to approximately 1024×768 first, then upscaled 2× to around 2048×1536. Keep this in mind when planning final output sizes.
Choosing between pure upscaling and creative upscaling
Bria Image Increase Resolution
- Supports 2× and 4× upscaling
- No prompt input; faithfully reconstructs original detail
- Best for photos, scanned images, and material that must stay true to the original
Clarity / CCSR / SD Latent
- 2× only
- Accepts a text prompt to guide detail enhancement direction
- Best when you want to add texture or artistic style during upscaling
When upscaling a low-resolution portrait with a creative model, adding sharp details, natural skin texture to the prompt typically produces more realistic facial detail than leaving the field empty — but higher prompt influence also means more deviation from the original appearance.
Strength and steps in creative mode
Strength controls how aggressively the model reimagines detail: 0.2–0.4 largely preserves the original texture; 0.6–0.8 redraws texture while the image is enlarged, which fixes noise and blur but may alter some original detail. 20–25 steps covers most cases well; beyond 30 steps the quality gain is usually negligible.
Which output format to use
- PNG: Lossless, best for further editing or printing
- JPG / WebP: Smaller file size, suitable for web display; quality range is 20–99, default 95
- PNG ignores the quality parameter and always outputs at maximum quality