Tokshop: Tokenization Workshop (ICML 2025)

Submission to the Tokenization Workshop begins on April 14, 2025, via OpenReview. The deadline for submissions is May 30, 2025, at 11:59pm (anywhere on earth). Notifications of acceptance will be sent out on June 9, 2025, and camera-ready papers will be due shortly afterward at 11:59pm (anywhere on earth). The workshop will take place on July 18, 2025.

Workshop Description



The Tokenization Workshop (TokShop) at ICML aims to bring together researchers and practitioners from all corners of machine learning to explore tokenization in its broadest sense. We will discuss innovations, challenges, and future directions for tokenization across diverse data types and modalities.

Call for Papers

Topics of interest include:


Subword Tokenization in NLP: Analysis of techniques such as BPE, WordPiece, and UnigramLM, as well as improvements for efficiency, interpretability, and adaptability.


Multimodal Tokenization: Tokenization strategies for images, audio, video, and other modalities, including methods to align representations across different types of data.


Multilingual Tokenization: Development of tokenizers that work robustly across languages and scripts, and investigation into failure modes tied to tokenization.


Tokenizer Modification Post-Training: Methods for updating tokenizers after model training to boost performance and/or efficiency without retraining from scratch.


Alternative Input Representations: Exploration of non-traditional tokenization approaches, such as byte-level, pixel-level, or patch-based representations.


Statistical Perspectives on Tokenization: Empirical analysis of token distributions, compression properties, and correlations with model behavior.

By broadening the scope of tokenization research beyond language, this workshop seeks to foster cross-disciplinary dialogue and inspire new advances at the intersection of representation learning, data efficiency, and model design.

Submission guidelines

Our author guidelines follow the ICML requirements unless otherwise specified.


Paper submission is hosted on OpenReview.


Each submission should contain up to 9 pages, not including references or appendix (shorter submissions also welcome).



Please use the provided LaTeX template (Style Files) for your submission. Please follow the paper formatting guidelines general to ICML as specified in the style files. Authors may not modify the style files or use templates designed for other conferences.



The paper should be anonymized and uploaded to OpenReview as a single PDF.



You may use as many pages of references and appendix as you wish, but reviewers are not required to read the appendix.



Posting papers on preprint servers like ArXiv is permitted.



We encourage each submission to discuss the limitations as well as ethical and societal implications of their work, wherever applicable (but neither are required). These sections do not count towards the page limit.




This workshop offers both archival and non-archival options for submissions. Archival papers will be indexed with proceedings, while non-archival submissions will not.


The review process will be double-blind


Read more: https://tokenization-workshop.github.io/