AI article
Async GRPO with LoRA across HF Jobs: a bucket, a proxy, and no NCCL
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huggingface | Sep 10, 2026 | Amine Dirhoussi, Quentin Gallouédec, Kashif Rasul, Sergio Paniego
Automated excerpt
AsyncGRPOTrainer can now train a LoRA adapter and sync only that adapter to vLLM (TRL v1. 14). The asynchronous trainer can now train an adapter instead of the full model, and it syncs only the LoRA adapter to vLLM. Every request starts with the same system prompt and chat template.
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