Training action LoRAs for MiniMax H3: ai-toolkit fails, musubi next?

SnooMachines1543 · reddit · 2026-09-24

A Redditor reports training character/style LoRAs (r2v) for MiniMax H3 with ai-toolkit works, but action LoRAs (I2V/r2v) keep erroring out despite exhaustive troubleshooting. They're considering musubi and asking which platforms others have used successfully for H3 action LoRA training.

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