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20242026
most citedFrom Tokens to Words: On the Inner Lexicon of LLMs

3 citations · 3 across the 4 of their papers we have counts for

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cs.CL2026

More Than Words: Compositional Tokenization for Efficient Language Models

Yuval Reif, Guy Kaplan, Roy Schwartz

Language models process and generate text sequentially in token units, and the tokenizer determines how much text each inference step covers. Under standard tokenization, a short E…

cs.CL2026

Last Translation Benchmark

Vilém Zouhar, Niyati Bafna, Mukund Choudhary +263

For scientific progress, we need benchmarks that test the limits of state-of-the-art models, and evaluation methods that inform us about failure cases. As models get stronger, stan…

cs.CL2026

Why Fine-Tuning Encourages Hallucinations and How to Fix It

Guy Kaplan, Zorik Gekhman, Zhen Zhu +5

Large language models are prone to hallucinating factually incorrect statements. A key source of these errors is exposure to new factual information through supervised fine-tuning…

cs.CL2025

Vocab Diet: Reshaping the Vocabulary of LLMs via Vector Arithmetic

Yuval Reif, Guy Kaplan, Roy Schwartz

Large language models (LLMs) often encode word-form variation (e.g., walk vs. walked) as linear directions in the embedding space. However, standard tokenization algorithms treat s…

cs.CL2025

Follow the Flow: On Information Flow Across Textual Tokens in Text-to-Image Models

Guy Kaplan, Michael Toker, Yuval Reif +2

Text-to-image generation models suffer from alignment problems, where generated images fail to accurately capture the objects and relations in the text prompt. Prior work has focus…

cs.CL2024★ 3 cited

From Tokens to Words: On the Inner Lexicon of LLMs

Guy Kaplan, Matanel Oren, Yuval Reif +1

Natural language is composed of words, but modern large language models (LLMs) process sub-words as input. A natural question raised by this discrepancy is whether LLMs encode word…