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Main Authors: Cohen, Eilam, Bul, Itamar, Inbar, Danielle, Loewenbach, Omri
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2601.05794
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author Cohen, Eilam
Bul, Itamar
Inbar, Danielle
Loewenbach, Omri
author_facet Cohen, Eilam
Bul, Itamar
Inbar, Danielle
Loewenbach, Omri
contents Large language models (LLMs) enable strong text generation, and in general there is a practical tradeoff between fine-tuning and prompt engineering. We introduce Simplify-This, a comparative study evaluating both paradigms for text simplification with encoder-decoder LLMs across multiple benchmarks, using a range of evaluation metrics. Fine-tuned models consistently deliver stronger structural simplification, whereas prompting often attains higher semantic similarity scores yet tends to copy inputs. A human evaluation favors fine-tuned outputs overall. We release code, a cleaned derivative dataset used in our study, checkpoints of fine-tuned models, and prompt templates to facilitate reproducibility and future work.
format Preprint
id arxiv_https___arxiv_org_abs_2601_05794
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Simplify-This: A Comparative Analysis of Prompt-Based and Fine-Tuned LLMs
Cohen, Eilam
Bul, Itamar
Inbar, Danielle
Loewenbach, Omri
Computation and Language
Machine Learning
Large language models (LLMs) enable strong text generation, and in general there is a practical tradeoff between fine-tuning and prompt engineering. We introduce Simplify-This, a comparative study evaluating both paradigms for text simplification with encoder-decoder LLMs across multiple benchmarks, using a range of evaluation metrics. Fine-tuned models consistently deliver stronger structural simplification, whereas prompting often attains higher semantic similarity scores yet tends to copy inputs. A human evaluation favors fine-tuned outputs overall. We release code, a cleaned derivative dataset used in our study, checkpoints of fine-tuned models, and prompt templates to facilitate reproducibility and future work.
title Simplify-This: A Comparative Analysis of Prompt-Based and Fine-Tuned LLMs
topic Computation and Language
Machine Learning
url https://arxiv.org/abs/2601.05794