# fine-tune

CEFR C1 · Verb

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

## Definition

To keep training an AI a little more so it gets better at one specific job.

For teachers: To further train a pretrained AI model on task- or domain-specific data to improve its performance in that context.

## Examples

- Developers fine-tuned the model on medical texts.
- The team fine-tuned the system for customer-service conversations.

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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.