Qwen-Image-Edit-2511-Lightning is a collection of optimized models tailored for image editing tasks, leveraging step distillation and quantization techniques to deliver high-efficiency inference performance. This repository hosts three core model files with distinct characteristics:

Model File Name	Type	Key Features
`Qwen-Image-Edit-2511-Lightning-4steps-V1.0-bf16.safetensors`	4-step Distilled LoRA	BF16 precision, lightweight, 4-step inference
`Qwen-Image-Edit-2511-Lightning-4steps-V1.0-fp32.safetensors`	4-step Distilled LoRA	FP32 precision, high accuracy, 4-step inference
`qwen_image_edit_2511_fp8_e4m3fn_scaled_lightning.safetensors`	FP8 Quantized	FP8 (e4m3fn scaled) precision, fused with 4-step distilled LoRA, optimized for low-memory deployment

Usage Instructions

This model suite supports two mainstream usage frameworks, with detailed guides provided below:

1. Qwen-Image-Lightning Framework

For full documentation on model usage within the Qwen-Image-Lightning ecosystem (including environment setup, inference pipelines, and customization), please refer to: Qwen-Image-Lightning GitHub Repository

2. LightX2V Framework

The models are fully compatible with the LightX2V lightweight video/image generation inference framework. For step-by-step usage examples, configuration templates, and performance optimization tips, see: LightX2V Qwen Image Edit Documentation

Key Optimizations

Step Distillation: The LoRA models reduce the original inference steps to just 4 steps, achieving significant speedup (≈10x faster than standard 40-step inference) while preserving image editing quality.
FP8 Quantization: The quantized base model balances performance and resource efficiency, reducing GPU memory usage by ~50% compared to FP32 while maintaining editing fidelity.

Support

For technical issues, feature requests, or integration questions:

Open an issue in the Qwen-Image-Lightning repo (for Qwen framework-specific questions)
Open an issue in the LightX2V repo (for LightX2V integration questions)

lightx2v/Qwen-Image-Edit-2511-Lightning

Qwen-Image-Edit-2511-Lightning

Model Overview

Usage Instructions

1. Qwen-Image-Lightning Framework

2. LightX2V Framework

Key Optimizations

Support

lightx2v/
Qwen-Image-Edit-2511-Lightning