Train a Krea 2 LoRA on 12 GB VRAM

Can you train a Krea 2 LoRA on a 12 GB GPU? Here is what the sources actually say.

Short answer: No trainer publishes a Krea 2-specific number. musubi-tuner's general guidance is 12 GB+ for image training, and its fp8 / ConvRot int8 options halve weight VRAM. Whether 12 GB is comfortable for Krea 2 is unknown.

Exact VRAM data we have

Not published by trainers. musubi: 12GB+ recommended for image training (general guidance); fp8 or --convrot_int8 halves weight VRAM

Memory-relevant settings

Train at 1024px or higher
Batch size >= 2 if VRAM allows
Training at 512px can work for output up to ~2MP; add higher-res buckets gradually [Discord community reports (AI Toolkit / banodoco / lodestone_rock servers), Oct 2026]

My own Krea 2 recipe uses qfloat8 model + text encoder, low_vram, gradient checkpointing and cached latents; see the full recipe. I train it on a rented RTX 5090 (32 GB), so I have not verified it at 12 GB.

Trainers that support Krea 2

ai-toolkit: supported (Raw + Turbo, incl. edit training)
OneTrainer: supported (per community blog; not in README list)
musubi-tuner: supported (fp8 / ConvRot int8 base)
SimpleTuner: supported

Other tiers: Krea 2 overview

Where to rent a 12 GB+ GPU

Cheapest 12 GB+ cards (2026-10-16 14:43 UTC) from RunPod and Vast.ai. Prices move constantly; see the live price table.

GPU	VRAM	RunPod community $/hr	Vast.ai cheapest $/hr
RTX 3060	12 GB	—	$0.06
RTX A4000	16 GB	$0.17	$0.09
RTX 4070S	12 GB	—	$0.10
Tesla V100	16 GB	$0.19	$0.10
RTX 3090	24 GB	$0.22	$0.12
RTX 5060 Ti	16 GB	—	$0.12

Sources

FAQ

Is 12 GB enough to train a Krea 2 LoRA?

No trainer publishes a Krea 2-specific number. musubi-tuner's general guidance is 12 GB+ for image training, and its fp8 / ConvRot int8 options halve weight VRAM. Whether 12 GB is comfortable for Krea 2 is unknown.

What is the cheapest 12 GB+ GPU to rent?

See the table above and the live price page.

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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.