No Single Tokenizer Feature Reliably Predicts Downstream Language Model Performance

arXiv:2610.21679 · cs.CL · Submitted 2026-10-15 · Read on arXiv

cs.CL

Submitted: 2026-10-15

Updated: 2026-10-15

Comments: 10 pages, accepted to Findings of EMNLP 2026

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 1× in this paper · explained in 2 episodes
• Tokenization — 1× in this paper · explained in 2 episodes

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