Why it matters

Multi-LoRA transforms serving economics for personalized LLMs. Understanding shapes multi-tenant apps.

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The architecture

Base model loaded once.

Adapters (LoRA) small; hot-swapped per request.

Multi-LoRA servingBase modelone instanceAdapterssmall, hot-swappablePer-request selectadapter by tenantFrameworks: vLLM, LoRAX, S-LoRA support multi-LoRA natively
Multi-LoRA setup.
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How it works end to end

Frameworks: vLLM, LoRAX, S-LoRA. Enable serving 100s of adapters.

Batch: mix requests with different adapters.

Storage: adapter small (MBs); base model large (GB).

Cold adapters cached vs on-demand.