Jenia Jitsev

Scientific Lead, Co-founder, LAION

Senior Scientist, Juelich Supercomputing Center, Research Center Juelich

Joined

July 2019

Names

Jenia Jitsev

Emails

****@fz-juelich.de (Confirmed)

Personal Links

Google Scholar

DBLP

ORCID

Career & Education History

Scientific Lead, Co-founder

LAION (laion.ai)

2021 – Present

Senior Scientist

Juelich Supercomputing Center, Research Center Juelich (fz-juelich.de)

2017 – Present

Advisors, Relations & Conflicts

Coauthor

Ludwig Schmidt

2021 – Present

PhD Advisor

Christoph von der Malsburg

2006 – 2009

Expertise

Open Foundation Models and Datasets

2019 – Present

Plasticity and Learning in Neural Networks

2006 – Present

Computational Neuroscience

2006 – Present

Machine Learning

2006 – Present

Publications

MixtureVitae: Open Web-Scale Pretraining Dataset With High Quality Instruction and Reasoning Data Built from Permissive-First Text Sources
Huu Nguyen, Victor May, Harsh Raj, Marianna Nezhurina, Yishan Wang, Yanqi Luo, Vu Minh Chien, Taishi Nakamura, Ken Tsui, Van Khue Nguyen, David Salinas, Aleksandra Krasnodębska, Christoph Schuhmann, Mats Leon Richter, Xuan-Son Vu, Jenia Jitsev
- Accepted by TMLR
- Readers: Everyone
MixtureVitae: Open Web-Scale Pretraining Dataset With High Quality Instruction and Reasoning Data Built from Permissive-First Text Sources
Huu Nguyen, Victor May, Harsh Raj, Marianna Nezhurina, Yishan Wang, Yanqi Luo, Vu Minh Chien, Taishi Nakamura, Ken Tsui, Van Khue Nguyen, David Salinas, Aleksandra Krasnodębska, Christoph Schuhmann, Mats Leon Richter, Xuan-Son Vu, Jenia Jitsev
- ICLR 2026 Workshop DATA-FM
- Readers: Everyone
Concept-Aware Batch Sampling Improves Language-Image Pretraining
Adhiraj Ghosh, Vishaal Udandarao, Thao Nguyen, Matteo Farina, Mehdi Cherti, Jenia Jitsev, Sewoong Oh, Elisa Ricci, Ludwig Schmidt, Matthias Bethge
- ICLR 2026 Conference Withdrawn Submission
- Readers: Everyone
OVid: Open Large-Scale Video Dataset as a Novel Source for Image-Text Data
Andreas Hochlehnert, Marianna Nezhurina, Thaddäus Wiedemer, Christoph Schuhmann, Mehdi Cherti, Romain Beaumont, Andrii Matiuk, Andrej Radonjic, Bernhard Schölkopf, Wieland Brendel, A. Sophia Koepke, Jenia Jitsev, Matthias Bethge
- Submitted to ICLR 2026
- Readers: Everyone
Terminal-Bench: Benchmarking Agents on Hard, Realistic Tasks in Command Line Interfaces
Mike A Merrill, Alexander Glenn Shaw, Nicholas Carlini, Boxuan Li, Harsh Raj, Ivan Bercovich, Lin Shi, Jeong Yeon Shin, Thomas Walshe, E. Kelly Buchanan, Junhong Shen, Guanghao Ye, Haowei Lin, Jason Poulos, Maoyu Wang, Marianna Nezhurina, Di Lu, Orfeas Menis Mastromichalakis, Zhiwei Xu, Zizhao Chen et al. (64 additional authors not shown)
- ICLR 2026 Poster
- Readers: Everyone
MixtureVitae: Open Web-Scale Pretraining Dataset With High Quality Instruction and Reasoning Data Built from Permissive Text Sources
Huu Nguyen, Victor May, Harsh Raj, Marianna Nezhurina, Yishan Wang, Yanqi Luo, Vu Minh Chien, Taishi Nakamura, Ken Tsui, Van Khue Nguyen, David Salinas, Aleksandra Krasnodębska, Mats Leon Richter, Christoph Schuhmann, Xuan-Son Vu, Jenia Jitsev
- ICLR 2026 Conference Desk Rejected Submission
- Readers: Everyone
OpenThoughts: Data Recipes for Reasoning Models
Etash Kumar Guha, Ryan Marten, Sedrick Keh, Negin Raoof, Georgios Smyrnis, Hritik Bansal, Marianna Nezhurina, Jean Mercat, Trung Vu, Zayne Rea Sprague, Ashima Suvarna, Benjamin Feuer, Leon Liangyu Chen, Zaid Khan, Eric Frankel, Sachin Grover, Caroline Choi, Niklas Muennighoff, Shiye Su, Wanjia Zhao et al. (31 additional authors not shown)
- ICLR 2026 Oral
- Readers: Everyone
OpenThoughts: Data Recipes for Reasoning Models
Etash Kumar Guha, Ryan Marten, Sedrick Keh, Negin Raoof, Georgios Smyrnis, Hritik Bansal, Marianna Nezhurina, Jean Mercat, Trung Vu, Zayne Rea Sprague, Ashima Suvarna, Benjamin Feuer, Leon Liangyu Chen, Zaid Khan, Eric Frankel, Sachin Grover, Caroline Choi, Niklas Muennighoff, Shiye Su, Wanjia Zhao et al. (30 additional authors not shown)
- FoRLM 2025
- Readers: Everyone
Detecting generalization deficits in large language and reasoning models by using natural variations in simple problems
Marianna Nezhurina, Lucia Cipolina-Kun, Mehdi Cherti, Jenia Jitsev
- Accepted by TMLR
- Readers: Everyone
Scaling Laws for Robust Comparison of Open Foundation Language-Vision Models and Datasets
Marianna Nezhurina, Tomer Porian, Giovanni Puccetti, Tommie Kerssies, Romain Beaumont, Mehdi Cherti, Jenia Jitsev
- NeurIPS 2025 poster
- Readers: Everyone

View all 46 publications

Co-Authors

View all 255 co-authors