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LoRA training guides by model, trainer and VRAM

Sourced, regularly updated guides for training image-model LoRAs. Every page links to its sources; anything not verified is marked unknown.

By model

• How to train a FLUX.3 Image Klein LoRA
• How to train a MOSS Image LoRA
• How to train a Qwen-Image-2.1 LoRA
• How to train a Krea 2 LoRA
• How to train a FLUX.2 dev LoRA
• How to train a FLUX.2 klein LoRA
• How to train a Z-Image LoRA
• How to train a SDXL LoRA
• How to train a FLUX.1 LoRA

By VRAM

• FLUX.2 klein on 12 GB
• FLUX.2 klein on 16 GB
• FLUX.2 dev on 24 GB
• FLUX.1 on 24 GB
• MOSS Image on 16 GB
• Krea 2 on 12 GB
• Z-Image on 12 GB

Trainer setup guides

• Krea 2 with ai-toolkit
• Krea 2 with OneTrainer
• Krea 2 with musubi-tuner
• Krea 2 with SimpleTuner
• FLUX.2 dev with ai-toolkit
• FLUX.2 dev with OneTrainer
• FLUX.2 dev with musubi-tuner
• FLUX.2 dev with SimpleTuner
• FLUX.2 klein with ai-toolkit
• FLUX.2 klein with OneTrainer
• FLUX.2 klein with musubi-tuner
• Z-Image with ai-toolkit
• Z-Image with OneTrainer
• Z-Image with musubi-tuner
• Z-Image with SimpleTuner
• SDXL with ai-toolkit
• SDXL with OneTrainer
• SDXL with kohya sd-scripts
• SDXL with SimpleTuner
• FLUX.1 with ai-toolkit
• FLUX.1 with OneTrainer
• FLUX.1 with kohya sd-scripts
• FLUX.1 with SimpleTuner

Trainer comparisons

• ai-toolkit vs OneTrainer for Krea 2
• ai-toolkit vs musubi-tuner for Krea 2
• ai-toolkit vs SimpleTuner for Krea 2
• OneTrainer vs musubi-tuner for Krea 2
• OneTrainer vs SimpleTuner for Krea 2
• musubi-tuner vs SimpleTuner for Krea 2
• ai-toolkit vs OneTrainer for FLUX.2 dev
• ai-toolkit vs musubi-tuner for FLUX.2 dev
• ai-toolkit vs SimpleTuner for FLUX.2 dev
• OneTrainer vs musubi-tuner for FLUX.2 dev
• OneTrainer vs SimpleTuner for FLUX.2 dev
• musubi-tuner vs SimpleTuner for FLUX.2 dev
• ai-toolkit vs OneTrainer for FLUX.2 klein
• ai-toolkit vs musubi-tuner for FLUX.2 klein
• OneTrainer vs musubi-tuner for FLUX.2 klein
• ai-toolkit vs OneTrainer for Z-Image
• ai-toolkit vs musubi-tuner for Z-Image
• ai-toolkit vs SimpleTuner for Z-Image
• OneTrainer vs musubi-tuner for Z-Image
• OneTrainer vs SimpleTuner for Z-Image
• musubi-tuner vs SimpleTuner for Z-Image
• ai-toolkit vs OneTrainer for SDXL
• ai-toolkit vs kohya sd-scripts for SDXL
• ai-toolkit vs SimpleTuner for SDXL
• OneTrainer vs kohya sd-scripts for SDXL
• OneTrainer vs SimpleTuner for SDXL
• kohya sd-scripts vs SimpleTuner for SDXL
• ai-toolkit vs OneTrainer for FLUX.1
• ai-toolkit vs kohya sd-scripts for FLUX.1
• ai-toolkit vs SimpleTuner for FLUX.1
• OneTrainer vs kohya sd-scripts for FLUX.1
• OneTrainer vs SimpleTuner for FLUX.1
• kohya sd-scripts vs SimpleTuner for FLUX.1

Data updated 2026-10-16. Disclosure: RunPod and Vast.ai links are referral links; ImageLoRA may earn a commission at no cost to you. unknown = not yet verified from a source.