seniorDeep Learning
What is Fine-Tuning in Large Language Models (LLMs)?
Updated May 16, 2026
Short answer
Fine-tuning adapts pretrained large language models to specialized tasks or domains using additional targeted training.
Deep explanation
Large Language Models are pretrained on enormous general-purpose datasets. While they possess broad capabilities, they often require specialization for domain-specific tasks.
Fine-tuning modifies pretrained weights using task-specific data.
Pipeline:
- Load pretrained foundation model.
- Provide domain-specific dataset.
- Continue gradient-based optimization.
- Adapt representations to target tasks.
Types of fine-tuning:
- Full Fine-Tuning:
- Update all parameters.
- Computationally expensive.
- High memory requirements.
2.…
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