Concept

Fine-tuning

Continued training of a pre-trained model on a task-specific dataset to specialise behaviour.

Definition

Fine-tuning takes a checkpoint that already learned general language or vision and updates its weights — sometimes only a subset (LoRA) — on a smaller curated dataset. Done well, it sharpens domain knowledge, style, and instruction following without the cost of training from scratch.

Common use cases

  • Domain adaptation
  • Style transfer
  • Custom assistants

Related terms

    Fine-tuning — AI Glossary | Railwail