S-LoRA vs LoRAX vs vLLM PEFT: which multi-adapter serving stack fits your workload?
S-LoRA is optimized for high-scale multi-adapter serving through unified paging and heterogeneous batching, LoRAX is designed for thousands of adapters with dynamic loading and production features, and vLLM PEFT is the lighter-weight option when you want vLLM’s serving stack with adapter support but not the most aggressive multi-adapter specialization.