← ImageLoRA

How to train a FLUX.2 klein LoRA

Which trainers support FLUX.2 klein (4B), how much VRAM you need, and settings that are known to work. Every row links to its source.

Trainer support

TrainerStatus
ai-toolkitsupported (klein base 4B and 9B)
OneTrainersupported
musubi-tunersupported
kohya sd-scriptsunknown
SimpleTunerunknown (Flux.2 listed; variant not stated)

VRAM

12-16 GB

Known-good settings

Where to rent a GPU

See cheapest GPU to train a LoRA (RunPod, Vast.ai).

Sources

Weekly newsletter: new models, trainer releases, cheapest GPUs. Subscribe

Data updated 2026-10-16. Some provider links may be referral links. unknown = not yet verified.