FLUX on a 4070 Graphics Card 🖼️

Short summary

A practical guide to running FLUX image generation locally on a 4070 GPU (12GB VRAM) using 4-bit NF4 quantization, LoRA fine-tuning, and memory optimization techniques. The author trained the model on 14 personal artwork images and shares the key techniques: quantization, parameter freezing, embedding caching, and memory footprint management.

• •4-bit NF4 quantization via bitsandbytes lets a 12GB card run a 24GB model
• •LoRA fine-tuning on 14 personal images enables custom art style generation
• •Key memory savers: gradient checkpointing, batch size 1 with gradient accumulation, 8-bit optimizer

Generated with AI, which can make mistakes.