Flux

Overview

Flux Mode is the most balanced and versatile option in Lupa AI. It is designed to perform well across nearly any image type — from renders and artwork to photos and marketing visuals — without introducing errors or distortion.

This mode is ideal when you want high quality output with minimal risk of:

Artifacts
AI hallucinations
Layout distortions
Over-enhancement

It combines the clarity of High Fidelity with some creative flexibility of the Creative mode, but always staying stable and professional.

Recommended if you're unsure which mode to use.

New: Portrait Sharpen

Flux now includes Portrait Sharpen, a specialized enhancement designed to improve sharpness, skin texture and facial detail in close-up images. It works especially well for:

Studio-style portraits
Fashion or product shots featuring faces
Images where realism and sharpness are critical

⚠️ While it enhances skin and eyes with precision, Portrait Sharpen avoids artificial textures or stylistic effects — making it ideal for commercial and editorial use.

Key Adjustable Settings

Prompt (optional) A short description of what's in the image. This helps guide the model when interpreting complex content. Example: “glass perfume bottle on a white background”
- Detect from image = AI automatically describes the selected image

Scale Factor Choose between x2, x4, x6, x8 or x10 enlargement. Larger scale increases resolution and detail — but also processing time and credit usage.

Creativity (slider) This controls how much freedom the AI has to modify details: - Low = faithful upscaling with subtle fixes - High = deeper transformation and enhancement ⚠️ Use with caution if you want to preserve the original image closely.

Portrait Sharpen (toggle)

This is a dedicated enhancement toggle for portraits and close-up faces. When enabled, it improves sharpness, skin texture, and fine facial detail, avoiding over-stylization.

To activate it:

Click the "Portrait Sharpen" button that appears after selecting Flux mode.

Creative mode:

Offers the most artistic freedom.
The AI may slightly reinterpret facial features, textures, and lighting.
Best for stylized portraits or fantasy results.
Not recommended for blurry or distant faces, as it may generate unwanted artifacts.

Ultra Leal Mode:

Prioritizes faithfulness to the original face.
Keeps proportions, structure, and features as close to the source as possible.
Very low tolerance for hallucination.
Also not ideal for blurry or low-res faces, as it tries to preserve what’s already there without much invention.

Ultra Real Mode:

Strikes a balance between realism and enhancement.
Adds realistic 4K skin texture, refines facial features, and enhances eyes and hair.
May slightly alter facial features for a more photographic or commercial look.
Ideal for improving AI-generated or soft-looking faces with added realism.