WanVideo Generation

LoRA Gym Just Made Video Model Training Something Normal People Can Do

Open-source Wan 2.1/2.2 training pipeline with MoE support, Modal/RunPod integration, and a setup process that doesn't require a PhD. The barrier to entry just dropped.

WanVideo GenerationLoraOpen SourceTrainingCloud

Training a LoRA for video models used to require: a $3,000+ GPU, expertise in distributed training, manual configuration of MoE routing, and probably a weekend of debugging CUDA errors. LoRA Gym just reduced that to a config file and a cloud account.

What It Provides

A complete training pipeline for Wan 2.1 and 2.2 video models with full Mixture of Experts support. It integrates with Modal and RunPod for cloud compute, uses musubi-tuner as the training backend, and handles the MoE complexity automatically.

The MoE part is important. Wan's larger models use Mixture of Experts architecture, which means training LoRAs requires specialized handling of expert routing and gradient computation. Getting this wrong produces garbage. LoRA Gym gets it right without you needing to understand the internals.

The Democratization Pattern

This is part of a larger trend: hard AI infrastructure work getting packaged into turnkey solutions. A year ago, training a video LoRA on a MoE model was expert territory. Now it's "run this script, point it at your data, pick a cloud provider."

The Modal and RunPod integration is clever because it removes the hardware barrier entirely. You don't need a local GPU. You rent compute for the training run and you're done. A 2-hour training run on RunPod might cost $5-10 instead of requiring a $3,000 GPU purchase.

My Take

Every time a complex AI workflow gets packaged into a simple pipeline, a new wave of creators gets access. LoRA Gym won't make everyone a video AI expert, but it'll let a lot more people experiment. And the best innovations come from experiments, not expertise.

Sources