TL;DR
A cost-effective fine-tuning methodology that adapts large AI models to specific tasks by training only a small subset of parameters while freezing the rest.
Parameter-Efficient Fine-Tuning addresses the high computational and storage costs of fully fine-tuning large neural networks. By freezing the majority of the pre-trained weights and inserting lightweight adapters or low-rank matrices, PEFT prevents catastrophic forgetting while producing performance comparable to full parameter updates. This modular approach allows a single base model to host many different task-specific parameter sets easily.
Why this matters for your business
It dramatically lowers the hardware barriers and cloud costs for customizing enterprise AI models. This enables small-to-medium businesses to deploy highly specialized models on consumer-grade GPUs.