Nemotron 3 Nano: Open, Efficient Mixture-of-Experts Hybrid Mamba-Transformer Model for Agentic Reasoning
Authors: name: NVIDIA, name: Aaron Blakeman, name: Aaron Grattafiori, name: Aarti Basant, name: Abhibha Gupta, name: Abhinav Khattar, name: Adi Renduchintala, name: Aditya Vavre, name: Akanksha Shukla, name: Akhiad Bercovich, name: Aleksander Ficek, name: Aleksandr Shaposhnikov, name: Alex Kondratenko, name: Alexander Bukharin, name: Alexandre Milesi, name: Ali Taghibakhshi, name: Alisa Liu, name: Amelia Barton, name: Ameya Sunil Mahabaleshwarkar, name: Amir Klein, name: Amit Zuker, name: Amnon Geifman, name: Amy Shen, name: Anahita Bhiwandiwalla, name: Andrew Tao, name: Ann Guan, name: Anubhav Mandarwal, name: Arham Mehta, name: Ashwath Aithal, name: Ashwin Poojary, name: Asif Ahamed, name: Asma Kuriparambil Thekkumpate, name: Ayush Dattagupta, name: Banghua Zhu, name: Bardiya Sadeghi, name: Barnaby Simkin, name: Ben Lanir, name: Benedikt Schifferer, name: Besmira Nushi, name: Bilal Kartal, name: Bita Darvish Rouhani, name: Boris Ginsburg, name: Brandon Norick, name: Brandon Soubasis, name: Branislav Kisacanin, name: Brian Yu, name: Bryan Catanzaro, name: Carlo del Mundo, name: Chantal Hwang, name: Charles Wang, name: Cheng-Ping Hsieh, name: Chenghao Zhang, name: Chenhan Yu, name: Chetan Mungekar, name: Chintan Patel, name: Chris Alexiuk, name: Christopher Parisien, name: Collin Neale, name: Damon Mosk-Aoyama, name: Dan Su, name: Dane Corneil, name: Daniel Afrimi, name: Daniel Rohrer, name: Daniel Serebrenik, name: Daria Gitman, name: Daria Levy, name: Darko Stosic, name: David Mosallanezhad, name: Deepak Narayanan, name: Dhruv Nathawani, name: Dima Rekesh, name: Dina Yared, name: Divyanshu Kakwani, name: Dong Ahn, name: Duncan Riach, name: Dusan Stosic, name: Edgar Minasyan, name: Edward Lin, name: Eileen Long, name: Eileen Peters Long, name: Elena Lantz, name: Ellie Evans, name: Elliott Ning, name: Eric Chung, name: Eric Harper, name: Eric Tramel, name: Erick Galinkin, name: Erik Pounds, name: Evan Briones, name: Evelina Bakhturina, name: Faisal Ladhak, name: Fay Wang, name: Fei Jia, name: Felipe Soares, name: Feng Chen, name: Ferenc Galko, name: Frankie Siino, name: Gal Hubara Agam, name: Ganesh Ajjanagadde, name: Gantavya Bhatt, name: Gargi Prasad, name: George Armstrong, name: Gerald Shen, name: Gorkem Batmaz, name: Grigor Nalbandyan, name: Haifeng Qian, name: Harsh Sharma, name: Hayley Ross, name: Helen Ngo, name: Herman Sahota, name: Hexin Wang, name: Himanshu Soni, name: Hiren Upadhyay, name: Huizi Mao, name: Huy C Nguyen, name: Huy Q Nguyen, name: Iain Cunningham, name: Ido Shahaf, name: Igor Gitman, name: Ilya Loshchilov, name: Ivan Moshkov, name: Izzy Putterman, name: Jan Kautz, name: Jane Polak Scowcroft, name: Jared Casper, name: Jatin Mitra, name: Jeffrey Glick, name: Jenny Chen, name: Jesse Oliver, name: Jian Zhang, name: Jiaqi Zeng, name: Jie Lou, name: Jimmy Zhang, name: Jining Huang, name: Joey Conway, name: Joey Guman, name: John Kamalu, name: Johnny Greco, name: Jonathan Cohen, name: Joseph Jennings, name: Joyjit Daw, name: Julien Veron Vialard, name: Junkeun Yi, name: Jupinder Parmar, name: Kai Xu, name: Kan Zhu, name: Kari Briski, name: Katherine Cheung, name: Katherine Luna, name: Keshav Santhanam, name: Kevin Shih, name: Kezhi Kong, name: Khushi Bhardwaj, name: Krishna C. Puvvada, name: Krzysztof Pawelec, name: Kumar Anik, name: Lawrence McAfee, name: Laya Sleiman, name: Leon Derczynski, name: Li Ding, name: Lucas Liebenwein, name: Luis Vega, name: Maanu Grover, name: Maarten Van Segbroeck, name: Maer Rodrigues de Melo, name: Makesh Narsimhan Sreedhar, name: Manoj Kilaru, name: Maor Ashkenazi, name: Marc Romeijn, name: Mark Cai, name: Markus Kliegl, name: Maryam Moosaei, name: Matvei Novikov, name: Mehrzad Samadi, name: Melissa Corpuz, name: Mengru Wang, name: Meredith Price, name: Michael Boone, name: Michael Evans, name: Miguel Martinez, name: Mike Chrzanowski, name: Mohammad Shoeybi, name: Mostofa Patwary, name: Nabin Mulepati, name: Natalie Hereth, name: Nave Assaf, name: Negar Habibi, name: Neta Zmora, name: Netanel Haber, name: Nicola Sessions, name: Nidhi Bhatia, name: Nikhil Jukar, name: Nikki Pope, name: Nikolai Ludwig, name: Nima Tajbakhsh, name: Nirmal Juluru, name: Oleksii Hrinchuk, name: Oleksii Kuchaiev, name: Olivier Delalleau, name: Oluwatobi Olabiyi, name: Omer Ullman Argov, name: Ouye Xie, name: Parth Chadha, name: Pasha Shamis, name: Pavlo Molchanov, name: Pawel Morkisz, name: Peter Dykas, name: Peter Jin, name: Pinky Xu, name: Piotr Januszewski, name: Pranav Prashant Thombre, name: Prasoon Varshney, name: Pritam Gundecha, name: Qing Miao, name: Rabeeh Karimi Mahabadi, name: Ran El-Yaniv, name: Ran Zilberstein, name: Rasoul Shafipour, name: Rich Harang, name: Rick Izzo, name: Rima Shahbazyan, name: Rishabh Garg, name: Ritika Borkar, name: Ritu Gala, name: Riyad Islam, name: Roger Waleffe, name: Rohit Watve, name: Roi Koren, name: Ruoxi Zhang, name: Russell J. Hewett, name: Ryan Prenger, name: Ryan Timbrook, name: Sadegh Mahdavi, name: Sahil Modi, name: Samuel Kriman, name: Sanjay Kariyappa, name: Sanjeev Satheesh, name: Saori Kaji, name: Satish Pasumarthi, name: Sean Narentharen, name: Sean Narenthiran, name: Seonmyeong Bak, name: Sergey Kashirsky, name: Seth Poulos, name: Shahar Mor, name: Shanmugam Ramasamy, name: Shantanu Acharya, name: Shaona Ghosh, name: Sharath Turuvekere Sreenivas, name: Shelby Thomas, name: Shiqing Fan, name: Shreya Gopal, name: Shrimai Prabhumoye, name: Shubham Pachori, name: Shubham Toshniwal, name: Shuoyang Ding, name: Siddharth Singh, name: Simeng Sun, name: Smita Ithape, name: Somshubra Majumdar, name: Soumye Singhal, name: Stefania Alborghetti, name: Stephen Ge, name: Sugam Dipak Devare, name: Sumeet Kumar Barua, name: Suseella Panguluri, name: Suyog Gupta, name: Sweta Priyadarshi, name: Syeda Nahida Akter, name: Tan Bui, name: Teodor-Dumitru Ene, name: Terry Kong, name: Thanh Do, name: Tijmen Blankevoort, name: Tom Balough, name: Tomer Asida, name: Tomer Bar Natan, name: Tugrul Konuk, name: Twinkle Vashishth, name: Udi Karpas, name: Ushnish De, name: Vahid Noorozi, name: Vahid Noroozi, name: Venkat Srinivasan, name: Venmugil Elango, name: Vijay Korthikanti, name: Vitaly Kurin, name: Vitaly Lavrukhin, name: Wanli Jiang, name: Wasi Uddin Ahmad, name: Wei Du, name: Wei Ping, name: Wenfei Zhou, name: Will Jennings, name: William Zhang, name: Wojciech Prazuch, name: Xiaowei Ren, name: Yashaswi Karnati, name: Yejin Choi, name: Yev Meyer, name: Yi-Fu Wu, name: Yian Zhang, name: Ying Lin, name: Yonatan Geifman, name: Yonggan Fu, name: Yoshi Subara, name: Yoshi Suhara, name: Yubo Gao, name: Zach Moshe, name: Zhen Dong, name: Zihan Liu, name: Zijia Chen, name: Zijie Yan
Published: 2025-12-23 23:54:32

We present Nemotron 3 Nano 30B-A3B, a Mixture-of-Experts hybrid Mamba-Transformer language model. Nemotron 3 Nano was pretrained on 25 trillion text tokens, including more than 3 trillion new unique tokens over Nemotron 2, followed by supervised fine tuning and large-scale RL on diverse environments. Nemotron 3 Nano achieves better accuracy than our previous generation Nemotron 2 Nano while activating less than half of the parameters per forward pass. It achieves up to 3.3x higher inference throughput than similarly-sized open models like GPT-OSS-20B and Qwen3-30B-A3B-Thinking-2507, while also being more accurate on popular benchmarks. Nemotron 3 Nano demonstrates enhanced agentic, reasoning, and chat abilities and supports context lengths up to 1M tokens. We release both our pretrained Nemotron 3 Nano 30B-A3B Base and post-trained Nemotron 3 Nano 30B-A3B checkpoints on Hugging Face.