---
title: FluxM-Guided Lightning Upscaler
emoji: ⚡
colorFrom: green
colorTo: indigo
sdk: gradio
sdk_version: 4.44.1
app_file: app_v4.py
pinned: true
license: other
tags:
- upscaler
- super-resolution
- controlnet
- flux.1-dev
- flux.1-schnell
- flux.1-merged
license_name: flux-1-dev-non-commercial-license
license_link: https://huggingface.co/black-forest-labs/FLUX.1-dev/blob/main/LICENSE.
short_description: Lightning fast guided upscaling with FLUX.
hf_oauth: true
hf_oauth_expiration_minutes: 480
---

# FLUX.1 Merged & Fused: Lightning Upscaler and Detailer

A high-performance image upscaling application built with FLUX.1 models, hosted on Hugging Face Spaces.

## Core Components

- **Framework**: Gradio (v4.44.1)
- **Main Model**: FLUX.1M-8step_upscaler-cnet
- **Text Encoder**: T5EncoderModel from FLUX.1-merged_uncensored
- **Vision Model**: Moondream for image captioning

## Key Features

1. **Image Upscaling**
   - ControlNet-based upscaling
   - Scale factor: 1-3x
   - 8-step inference for speed
   - Memory-optimized with xFormers

2. **Auto-Captioning**
   - Uses Moondream for image analysis
   - Generates detailed image descriptions
   - Focus area specification

3. **Performance Optimizations**
   - Attention slicing
   - Memory-efficient attention
   - BFloat16 precision
   - GPU acceleration

## Environment Requirements

- PyTorch 2.4.0
- CUDA support
- Hugging Face token for model access
- Moondream API key

## Usage

1. Upload control image
2. (Optional) Enter custom prompt or use auto-caption
3. Adjust parameters:
   - Scale (1-3x)
   - Steps (2-16)
   - ControlNet scale (0-1)
   - Guidance scale (1-30)
   - Seed (0-1000000)

## License

Non-commercial license (FLUX.1-dev)