GPT-4o contributions
Language
Pre-training leads
Aidan Clark, Alex Paino, Jacob Menick
Post-training leads
Liam Fedus, Luke Metz
Architecture leads
Clemens Winter, Lia Guy
Optimization leads
Sam Schoenholz, Daniel Levy
Long-context lead
Nitish Keskar
Pre-training Data leads
Alex Carney, Alex Paino, Ian Sohl, Qiming Yuan
Tokenizer lead
Reimar Leike
Human data leads
Arka Dhar, Brydon Eastman, Mia Glaese
Eval lead
Ben Sokolowsky
Data flywheel lead
Andrew Kondrich
Inference lead
Felipe Petroski Such
Inference Productionization lead
Henrique Ponde de Oliveira Pinto
Post-training infrastructure leads
Jiayi Weng, Randall Lin, Youlong Cheng
Pre-training organization lead
Nick Ryder
Pre-training program lead
Lauren Itow
Post-training organization leads
Barret Zoph, John Schulman
Post-training program lead
Mianna Chen
Core contributors
Aaron Hurst, Adam Lerer, Adam P. Goucher, Adam Perelman, Akila Welihinda, Alec Radford, Alex Borzunov, Alex Carney, Alex Chow, Alex Paino, Alex Renzin, Alex Tachard Passos, Alexi Christakis, Ali Kamali, Allison Moyer, Allison Tam, Amadou Crookes, Amin Tootoonchian, Ananya Kumar, Andrej Karpathy, Andrey Mishchenko, Andrew Cann, Andrew Kondrich, Andrew Tulloch, Angela Jiang, Antoine Pelisse, Antonia Woodford, Anuj Gosalia, Avi Nayak, Avital Oliver, Behrooz Ghorbani, Ben Leimberger, Ben Wang, Beth Hoover, Blake Samic, Brian Guarraci, Brydon Eastman, Camillo Lugaresi, Chak Li, Charlotte Barette, Chelsea Voss, Chen Ding, Chong Zhang, Chris Beaumont, Chris Hallacy, Chris Koch, Christian Gibson, Christine Choi, Christopher Hesse, Colin Wei, Daniel Kappler, Daniel Levin, Daniel Levy, David Farhi, David Mely, David Sasaki, Dimitris Tsipras, Doug Li, Duc Phong Nguyen, Duncan Findlay, Edmund Wong, Ehsan Asdar, Elizabeth Proehl, Elizabeth Yang, Eric Peterson, Eric Sigler, Eugene Brevdo, Farzad Khorasani, Francis Zhang, Gene Oden, Geoff Salmon, Hadi Salman, Haiming Bao, Heather Schmidt, Hongyu Ren, Hyung Won Chung, Ian Kivlichan, Ian O'Connell, Ian Osband, Ibrahim Okuyucu, Ilya Kostrikov, Ingmar Kanitscheider, Jacob Coxon, James Crooks, James Lennon, Jane Park, Jason Teplitz, Jason Wei, Jason Wolfe, Jay Chen, Jeff Harris, Jiayi Weng, Jie Tang, Joanne Jang, Jonathan Ward, Jonathan McKay, Jong Wook Kim, Josh Gross, Josh Kaplan, Joy Jiao, Joyce Lee, Juntang Zhuang, Kai Fricke, Kavin Karthik, Kenny Hsu, Kiel Howe, Kyle Luther, Larry Kai, Lauren Itow, Leo Chen, Lia Guy, Lien Mamitsuka, Lilian Weng, Long Ouyang, Louis Feuvrier, Lukas Kondraciuk, Lukasz Kaiser, Lyric Doshi, Mada Aflak, Maddie Simens, Madeleine Thompson, Marat Dukhan, Marvin Zhang, Mateusz Litwin, Matthew Zeng, Max Johnson, Mayank Gupta, Mia Glaese, Michael Janner, Michael Petrov, Michael Wu, Michelle Fradin, Michelle Pokrass, Miguel Oom Temudo de Castro, Mikhail Pavlov, Minal Khan, Mo Bavarian, Murat Yesildal, Natalia Gimelshein, Natalie Staudacher, Nick Stathas, Nik Tezak, Nithanth Kudige, Noel Bundick, Ofir Nachum, Oleg Boiko, Oleg Murk, Olivier Godement, Owen Campbell-Moore, Philip Pronin, Philippe Tillet, Rachel Lim, Rajan Troll, Randall Lin, Rapha gontijo lopes, Raul Puri, Reah Miyara, Reimar Leike, Renaud Gaubert, Reza Zamani, Rob Honsby, Rohit Ramchandani, Rory Carmichael, Ruslan Nigmatullin, Ryan Cheu, Sara Culver, Scott Gray, Sean Grove, Sean Metzger, Shantanu Jain, Shengjia Zhao, Sherwin Wu, Shuaiqi (Tony) Xia, Sonia Phene, Spencer Papay, Steve Coffey, Steve Lee, Steve Lee, Stewart Hall, Suchir Balaji, Tal Broda, Tal Stramer, Tarun Gogineni, Ted Sanders, Thomas Cunninghman, Thomas Dimson, Thomas Raoux, Tianhao Zheng, Christina Kim, Todd Underwood, Tristan Heywood, Valerie Qi, Vinnie Monaco, Vlad Fomenko, Weiyi Zheng, Wenda Zhou, Wojciech Zaremba, Yash Patil, Yilei, Qian, Yongjik Kim, Youlong Cheng, Yuchen He, Yuchen Zhang, Yujia Jin, Yunxing Dai, Yury Malkov
Multimodal
Multimodal lead
Prafulla Dhariwal
Post-Training Multimodal lead
Alexander Kirillov
Audio Pre-Training leads
Alexis Conneau, James Betker
Audio Post-Training leads
Alexander Kirillov, James Betker, Yu Zhang
Visual perception leads
Jamie Kiros, Rowan Zellers, Raul Puri, Jiahui Yu
Visual generation leads
James Betker, Alex Nichol, Heewoo Jun, Casey Chu, Gabriel Goh
Science leads
Gabriel Goh, Ishaan Gulrajani
Data acquisition leads
Ian Sohl, Qiming Yuan
Data infrastructure leads
Alex Paino, James Betker, Rowan Zellers, Alex Nichol
Human data lead
Arka Dhar, Mia Glaese
Encoders leads
Heewoo Jun, Alexis Conneau, Li Jing, Jamie Kiros
Decoders leads
Allan Jabri, Jong Wook Kim, James Betker
Interruptions leads
Alexis Conneau, Tao Xu, Yu Zhang
Inference lead
Tomer Kaftan
Real-time AV platform leads
Bogo Giertler, Raul Puri, Rowan Zellers, Tomer Kaftan
Front-end leads
Nacho Soto, Rocky Smith, Wayne Chang
Post-training Multimodal Infrastructure leads
Alexander Kirillov, Luke Metz, Raul Puri, Vlad Fomenko
Applied Eng lead
Jordan Sitkin
Audio manager
Christine McLeavey
Multimodal organization lead
Mark Chen
Program lead
Mianna Chen
Core contributors
Aditya Ramesh, AJ Ostrow, Allan Jabri, Alexis Conneau, Alec Radford, Alex Nichol, Avi Nayak, Avital Oliver, Benjamin Zweig, Bogo Giertler, Bowen Cheng, Brandon Walkin, Brendan Quinn, Chong Zhang, Christine McLeavey, Constantin Koumouzelis, Daniel Kappler, Doug Li, Edede Oiwoh, Farzad Khorasani, Felipe Petroski Such, Heather Schmidt, Heewoo Jun, Huiwen Chang, Ian Silber, Ishaan Gulrajani, David Carr, Haitang Hu, James Lennon, James Betker, Jamie Kiros, Jeff Harris, Jenia Varavva, Jiahui Yu, Ji Lin, Joanne Jang, Johannes Heidecke, Jong Wook Kim, Liang Zhou, Li Jing, Long Ouyang, Madelaine Boyd, Mark Hudnall, Mengchao Zhong, Mia Glaese, Nick Turley, Noah Deutsch, Noel Bundick, Ola Okelola, Olivier Godement, Owen Campbell-Moore, Peter Bak, Peter Bakkum, Raul Puri, Rowan Zellers, Saachi Jain, Shantanu Jain, Shirong Wu, Spencer Papay, Tao Xu, Valerie Qi, Wesam Manassra, Yu Zhang
Platform
Data Systems lead
Andrew Tulloch
Model distribution leads
Amin Tootoochian, Miguel Castro
ML leads
Nik Tezak, Christopher Hesse
Runtime lead
Ian O’Connell
Systems lead
Jason Teplitz
Kernels lead
Phil Tillet
Hardware health leads
Reza Zamani & Michael Petrov
Supercomputing leads
Rory Carmichael & Christian Gibson
Preparedness, Safety, Policy
Safety lead
Johannes Heidecke
Audio safety lead
Saachi Jain
Preparedness lead
Tejal Patwardhan
Red-teaming lead
Troy Peterson
Core contributors
Alex Beutel, Andrea Vallone, Angela Jiang, Carroll Wainwright, Chong Zhang, Chris Beaumont, Claudia Fischer, Evan Mays, Filippo Raso, Haoyu Wang, Ian Kivlichan, Jason Phang, Jieqi Yu, Joel Parish, Joshua Achiam, Jonathan Uesato, Joost Huizinga, Josh Snyder, Justyn Harriman, Katy Shi, Keren Gu-Lemberg, Kevin Liu, Lama Ahmad, Lilian Weng, Madelaine Boyd, Meghan Shah, Mehmet Yatbaz, Michael Lampe, Miles Wang, Molly Lin, Natalie Cone, Neil Chowdhury, Olivia Watkins, Owen Campbell-Moore, Peter Dolan, Rachel Dias, Rahul Arora, Reimar Leike, Saachi Jain, Sam Toizer, Sandhini Agarwal, Todor Markov
Model Launch and Deployment
Lead
Mianna Chen
Additional contributions
Additional Leadership
Aleksander Mądry, Barret Zoph, Bob McGrew, Brad Lightcap, David Farhi, Greg Brockman, Hannah Wong, Ilya Sutskever, Jakub Pachocki, Jan Leike, Jason Kwon, John Schulman, Jonathan Lachman, Krithika Muthukumar, Lilian Weng, Mark Chen, Miles Brundage, Mira Murati, Nick Ryder, Peter Deng, Peter Welinder, Sam Altman, Srinivas Narayanan, Tal Broda
Legal
Alan Hayes, Ashley Pantuliano, Bright Kellogg, Fred von Lohmann, Filippo Raso, Heather Whitney, Tom Rubin
Blog post authorship
Aidan Clark, Alex Baker-Whitcomb, Alex Carney, Alex Nichol, Alexander Kirillov, Alex Paino, Alexis Conneau, Allan Jabri, Anuj Gosalia, Barret Zoph, Ben Sokolowsky, Bogo Giertler, Bowen Cheng, Cheng Lu, Christine McLeavey, Coley Czarnecki, Daniel Kappler, Elizabeth Yang, Eric Antonow, Eric Wallace, Filippo Raso, Gabriel Goh, Greg Brockman, Hannah Wong, Heewoo Jun, Hendrik Kirchner, Jacob Menick, James Betker, James Betker, Jamie Kiros, Jason Kwon, Jeff Harris, Ji Lin, Jiahui Yu, Johannes Heidecke, John Schulman, Jonathan McKay, Jong Wook Kim, Jordan Sitkin, Kendra Rimbach, Kevin Liu, Krithika Muthukumar, Leher Pathak, Liam Fedus, Lilian Weng, Lindsay McCallum, Luke Metz, Mark Chen, Maya Shetty, Mianna Chen, Michael Lampe, Michael Wu, Michelle Pokrass, Mira Murati, Nacho Soto, Natalie Summers, Niko Felix, Olivier Godement, Owen Campbell-Moore, Peter Deng, Prafulla Dhariwal, Reimar Leike, Rocky Smith, Rowan Zellers, Saachi Jain, Sandhini Agarwal, Sam Toizer, Sean Grove, Shantanu Jain, Tao Xu, Tejal Patwardhan, Tomer Kaftan, Tom Stasi, Troy Peterson, Veit Moeller, Vinnie Monaco, Wayne Chang, Yu Zhang, Yuchen He
Demo content + production
Alex Baker-Whitcomb, Avi Nayak, Barret Zoph, Bobby Spero, Bogo Giertler, Brendan Quinn, Chad Nelson, Charlotte Barette, Claudia Fischer, Coley Czarnecki, Colin Jarvis, Eric Antonow, Filippo Raso, Greg Brockman, James Betker, Jessica Shieh, Joe Beutler, Joe Landers, Krithika Muthukumar, Leher Pathak, Lindsay McCallum, Mark Chen, Mianna Chen, Michael Petrov, Mira Murati, Natalie Summers, Peter Deng, Ricky Wang, Rocky Smith, Rohan Sahai, Romain Huet, Rowan Zellers, Scott Ethersmith, Toki Sherbakov, Tomer Kaftan, Veit Moeller, Wayne Chang
Communications + Marketing
Alex Baker-Whitcomb, Andrew Galu, Angela Baek, Coley Czarnecki, Dev Valladares, Eric Antonow, Hannah Wong, Leher Pathak, Lindsay McCallum, Lindsey Held, Krithika Muthukumar, Kendra Rimbach, Maya Shetty, Niko Felix, Roy Chen , Ruby Chen, Taya Christianson, Thomas Degry, Veit Moeller
Resource Allocation & Problem Solving
Bob McGrew, Lauren Itow, Mianna Chen, Nik Tezak, Peter Hoeschele, Tal Broda
Inference Compute
Andrew Codispoti, Brian Hsu, Channing Conger, Ikai Lan, Jos Kraaijeveld, Kai Hayashi, Kenny Nguyen, Lu Zhang, Natan LaFontaine, Pavel Belov, Peng Su, Vishal Kuo, Will Sheu
Security and privacy
Kevin Button, Paul McMillan, Shino Jomoto, Thomas Shadwell, Vinnie Monaco
GTM, Pricing, Finance
Andrew Braunstein, Anuj Gosalia, Denny Jin, Eric Kramer, Jeff Harris, Jessica Shieh, Joe Beutler, Joe Landers, Lauren Workman, Rob Donnelly, Romain Huet, Shamez Hermani, Toki Sherbakov
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 GPT-4o.
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