# fine-tuning

CEFR C1 · Noun

Source: https://englishreference.com/word/fine-tuning
Updated: 2026-09-18

## Definition

Extra training given to an AI model to make it better at one particular task.

For teachers: The process of continuing to train a pretrained model on task- or domain-specific data to specialize its performance.

## Examples

- The developers used fine-tuning to adapt the model to legal documents.
- Fine-tuning improved the model's performance on specialized tasks.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.