Asynchronous GRPO with LoRA on Hugging Face Jobs: one bucket, one proxy, no NCCL
TRL v1.14's AsyncGRPOTrainer can now train and sync only LoRA adapters to vLLM. Rank-1 adapters are just a few megabytes and can be transferred through a Storage Bucket mounted across multiple Hugging Face Jobs, without NCCL.

