Fine-Tuning vs LoRA

Full fine-tuning of an LLM requires massive GPU clusters. LoRA (Low-Rank Adaptation) allows you to adapt a model using a single consumer GPU.

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How LoRA Works

Instead of updating all billions of weights in a model, LoRA injects small, trainable rank decomposition matrices into specific layers (usually attention blocks). The original weights remain frozen.

Production Benefits

Because LoRA adapters are tiny (often under 100MB), you can load a single base model into VRAM and dynamically swap LoRA adapters per-request depending on the user or task, enabling massive multi-tenancy.

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