# optimizer

CEFR C1 · Noun

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

## Definition

The part of AI training that adjusts the model bit by bit to make it more accurate.

For teachers: An algorithm that iteratively adjusts a model's parameters to minimize training error.

## Examples

- The researchers selected a different optimizer for the experiment.
- The optimizer updates the model after each training step.

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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.