OpenAI

OpenAI o1 Contributions

2026-02-25 · 00:00 UTC ·3 min read

Brief

OpenAI's o1 Contributions (published 2026-02-25, 738 words) enumerates hundreds of people across leadership, foundational and core contributors, program managers, and executive leadership for the o1 project. It maps an extensive safety organization (leads, research, infrastructure, preparedness, red teaming) and acknowledges Microsoft Azure and Bing teams for training infrastructure and deployment collaboration.

Why it matters

Published 2026-02-25, the 738-word OpenAI 'o1 Contributions' post lists leadership and contributors for the o1 effort, naming leaders such as Jakub Pachocki and Jerry Tworek, executive leaders including Sam Altman, Mira Murati, Greg Brockman, and foundational contributors like Ilya Sutskever and Jason Wei.

Key details

  • The article details a structured safety organization for o1: o1 Safety Leads (Boaz Barak, Eric Wallace, Jieqi Yu, Kai Xiao, Saachi Jain, Sam Toizer, Sandhini Agarwal, Tejal Patwardhan), plus sections for Safety Research, Safety Infrastructure, Preparedness Evaluations, and both External (Lama Ahmad, Michael Lampe) and Internal Red Teaming (Bowen Baker, Wojciech Zaremba).
  • OpenAI acknowledges Microsoft partnership—Microsoft Azure supported model training infrastructure design and management, and Microsoft Bing and Microsoft's safety teams partnered on safe deployment—and thanks company-wide support functions (finance, HR, legal, operations, recruiting).
Source evidence

title: OpenAI o1 Contributions
contenttype: article
publication: OpenAI
published: 2026-02-25T00:00:00
sourceurl: https://openai.com/openai-o1-contributions

word_count: 738

OpenAI o1 Contributions

Reasoning Research

Foundational Contributors

Ahmed El-Kishky, Daniel Selsam, Francis Song, Giambattista Parascandolo, Hongyu Ren, Hunter Lightman, Hyung Won Chung, Ilge Akkaya, Ilya Sutskever, Jason Wei, Jonathan Gordon, Karl Cobbe, Kevin Yu, Lukas Kondraciuk, Max Schwarzer, Mostafa Rohaninejad, Noam Brown, Shengjia Zhao, Trapit Bansal, Vineet Kosaraju, Wenda Zhou

Leadership

Jakub Pachocki, Jerry Tworek (overall), Liam Fedus, Lukasz Kaiser, Mark Chen, Szymon Sidor, Wojciech Zaremba

Core Contributors

Alex Karpenko, Alexander Wei, Allison Tam, Ananya Kumar, Andre Saraiva, Andrew Kondrich, Andrey Mishchenko, Ashvin Nair, Behrooz Ghorbani, Bohan Zhang, Brandon McKinzie, Brydon Eastman, Chak Ming Li, Chris Koch, Dan Roberts, David Dohan, David Mely, Dimitris Tsipras, Enoch Cheung, Eric Wallace, Hadi Salman, Haiming Bao, Hessam Bagherinezhad, Ilya Kostrikov, Jiacheng Feng, John Rizzo, Karina Nguyen, Kevin Lu, Kevin Stone, Lorenz Kuhn, Mason Meyer, Mikhail Pavlov, Nat McAleese, Oleg Boiko, Oleg Murk, Peter Zhokhov, Randall Lin, Raz Gaon, Rhythm Garg, Roshan James, Rui Shu, Scott McKinney, Shibani Santurkar, Suchir Balaji, Taylor Gordon, Thomas Dimson, Weiyi Zheng

Contributors

Aaron Jaech, Adam Lerer, Aiden Low, Alex Carney, Alex Tachard Passos, Alexander Neitz, Alexander Prokofiev, Benjamin Sokolowsky, Boaz Barak, Borys Minaiev, Botao Hao, Bowen Baker, Brandon Houghton, Camillo Lugaresi, Chelsea Voss, Chen Shen, Chris Orsinger, Daniel Kappler, Daniel Levy, Doug Li, Eben Freeman, Edmund Wong, Eric Mitchell, Fan Wang, Felipe Petroski Such, Foivos Tsimpourlas, Geoff Salmon, Gildas Chabot, Guillaume Leclerc, Hao Sheng, Hart Andrin, Ian O’Connell, Ian Osband, Ignasi Clavera Gilaberte, Jean Harb, Jiahui Yu, Jiayi Weng, Joe Palermo, John Hallman, Jonathan Ward, Julie Wang, Kai Chen, Katy Shi, Keren Gu-Lemberg, Kevin Liu, Leo Liu, Linden Li, Luke Metz, Maja Trebacz, Manas Joglekar, Marko Tintor, Melody Guan, Mengyuan Yan, Mia Glaese, Michael Malek, Michele Wang, Michelle Fradin, Mo Bavarian, Nikolas Tezak, Ofir Nachum, Paul Ashbourne, Pavel Izmailov, Rapha Gontijo Lopes, Reah Miyara, Reimar Leike, Robin Brown, Ryan Cheu, Ryan Greene, Saachi Jain, Scottie Yan, Shengli Hu, Shuyuan Zhang, Siyuan Fu, Spencer Papay, Suvansh Sanjeev, Tao Wang, Ted Sanders, Tejal Patwardhan, Thibault Sottiaux, Tianhao Zheng, Timur Garipov, Valerie Qi, Vitchyr Pong, Vlad Fomenko, Wenting Zhan, Yann Dubois, Yinghai Lu, Yining Chen, Yu Bai, Yuchen He, Yuchen Zhang, Zheng Shao, Zhuohan Li

Program Managers

Lauren Yang, Mianna Chen

Executive Leadership

Barret Zoph (organization), Bob McGrew, Greg Brockman, Jakub Pachocki, Mark Chen (organization), Mira Murati, Sam Altman, Tal Broda (organization)

Supporting Leadership

Aidan Clark, Aleksander Madry, Christopher Hesse, David Farhi, Jie Tang, Lilian Weng, Mia Glaese, Nick Ryder

Reasoning Technical Safety

o1 Safety Leads

Boaz Barak, Eric Wallace, Jieqi Yu, Kai Xiao, Saachi Jain, Sam Toizer, Sandhini Agarwal, Tejal Patwardhan

Safety Research

Alec Helyar, Andrea Vallone, Chong Zhang, Ian Kivlichan, Karan Singhal, Keren GuLemberg, Manas Joglekar, Melody Guan, Meghan Shah, Rahul Arora, Randall Lin, Sam Toyer, Shraman Ray Chaudhuri, Steph Lin

Safety Infrastructure

Adam Richardson, Andrew Duberstein, Charles de Bourcy, Dragos Oprica, Florencia Leoni, Grace Zhao, Madelaine Boyd, Matt Jones, Matt Kaufer, Mehmet Yatbaz, Mengyuan Xu, Mike McClay, Mingxuan Wang, Santiago Hernandez, Trevor Creech, Vinnie Monaco, Young Cha

Preparedness Evaluations

Andy Applebaum, Elizabeth Proehl, Erik Ritter, Evan Mays, Joel Parish, Jonathan Uesato, Katy Shi, Kevin Liu, Leon Maksin, Leyton Ho, Michele Wang, Miles Wang, Neil Chowdhury, Olivia Watkins, Patrick Chao, Rachel Dias, Samuel Miserendino

External Red Teaming

Lama Ahmad, Michael Lampe, Troy Peterson

Internal Red Teaming

Bowen Baker, Joost Huizinga, Karina Nguyen, Wojciech Zaremba

Safety Leadership

Alex Beutel, Aleksander Madry, Irina Kofman, Joaquin Quiñonero Candela, Johannes Heidecke, Lilian Weng, Mia Glaese

We also acknowledge and thank every OpenAI team member not explicitly mentioned above, including the amazing people on the executive assistant, finance, go to market, human resources, legal, operations and recruiting teams. From hiring everyone in the company, to making sure we have an amazing office space, to building the administrative, HR, legal, and financial structures that allow us to do our best work, everyone at OpenAI has contributed to o1.

We thank Microsoft for their partnership, especially Microsoft Azure for supporting model training with infrastructure design and management, and the Microsoft Bing team and Microsoft's safety teams for their partnership on safe deployment.

We are grateful to our expert adversarial testers and red teamers who helped test our models at early stages of development and informed our risk assessments as well as the system card. Participation in this red teaming process is not an endorsement of the deployment plans of OpenAI or OpenAI’s policies.

*Contributors listed in alphabetized order