Siddharth Karamcheti

skaramcheti@gatech.edu
Atlanta, GA
    · · · ·
    I am an Assistant Professor of Interactive Computing at Georgia Tech and the Autonomy Research Lead at Walden Robotics.
      My research focuses on robotics, multimodal machine learning, and human-robot interaction across two axes: Timeline: I completed my PhD in Computer Science at Stanford University in 2025 where I was co-advised by Dorsa Sadigh and Percy Liang. I was supported by the Open Philanthropy Project AI Fellowship.
        During my PhD, I was grateful to spend time as a research intern at the Toyota Research Institute working on large behavior models. I was also lucky to spend time at Hugging Face 🤗 working on multimodal pretraining and vision-language models with an incredible team of collaborators.
          I completed my undergraduate degrees in computer science and literary arts at Brown University. While there, I did research in NLP & human-robot interaction advised by Eugene Charniak and Stefanie Tellex.

            Research Opportunities: If you are a current Georgia Tech student looking for research experience in the lab, please fill out this form. The form is the best way to reach me about research opportunities in my lab, and is much more reliable than email.

            News


            Publications

            2026

            ReSteer: Quantifying and Refining the Steerability of Multitask Robot Policies
            Zhenyang Chen, Alan Tian*, Liquan Wang*, Benjamin Joffe, Yingyan Celine Lin, Yuxiao Chen, Siddharth Karamcheti, Danfei Xu.
            Robotics: Science and Systems (RSS), 2026.
            [pdf] [homepage] [video]

            A Careful Examination of Large Behavior Models for Multitask Dexterous Manipulation
            Toyota Research Institute - Large Behavior Models Team.
            Science Robotics, 2026.
            [pdf] [homepage] [overview video]

            2025

            ProVox: Personalization and Proactive Planning for Situated Human-Robot Collaboration
            Jennifer Grannen, Siddharth Karamcheti, Blake Wulfe, Dorsa Sadigh.
            IEEE Robotics and Automation Letters (RA-L), 2025.
            Presentation at ICRA 2026.
            [pdf] [homepage]

            2024

            Vocal Sandbox: Continual Learning and Adaptation for Situated Human-Robot Collaboration
            Jennifer Grannen*, Siddharth Karamcheti*, Suvir Mirchandani, Percy Liang, Dorsa Sadigh.
            Conference on Robot Learning (CoRL), November 2024.
            Oral Presentation
            [pdf] [homepage]

            OpenVLA: An Open-Source Vision-Language-Action Model
            Moo Jin Kim*, Karl Pertsch*, Siddharth Karamcheti*, Ted Xiao, Ashwin Balakrishna, Suraj Nair, Rafael Rafailov, Ethan Foster, Grace Lam,
            Pannag Sanketi, Quan Vuong, Thomas Kollar, Ben Burchfiel, Russ Tedrake, Dorsa Sadigh, Sergey Levine, Percy Liang, Chelsea Finn.
            Conference on Robot Learning (CoRL), November 2024.
            Outstanding Paper Award Finalist
            [pdf] [homepage] [models] [code]

            DROID: A Large-Scale In-the-Wild Robot Manipulation Dataset
            DROID Collaboration (Research Lead – Data Curation & Annotation, Lab Lead).
            Robotics: Science and Systems (RSS), July 2024.
            [pdf] [homepage] [dataset visualizer] [colab]

            Prismatic VLMs: Investigating the Design Space of Vision-Language Models
            Siddharth Karamcheti, Suraj Nair, Ashwin Balakrishna, Percy Liang, Thomas Kollar, Dorsa Sadigh.
            International Conference on Machine Learning (ICML), July 2024.
            [pdf] [code & models] [code - evaluation]

            Open X-Embodiment: Robotic Learning Datasets and RT-X Models
            Open X-Embodiment Collaboration.
            IEEE International Conference on Robotics and Automation (ICRA), May 2024.
            Best Paper Award
            [pdf] [homepage] [datasets] [code]

            2023

            Language-Driven Representation Learning for Robotics
            Siddharth Karamcheti, Suraj Nair, Annie S. Chen, Thomas Kollar, Chelsea Finn, Dorsa Sadigh, Percy Liang.
            Robotics: Science and Systems (RSS), July 2023.
            Best Paper Award Finalist
            [pdf] [homepage] [code - models] [code - evaluation]

            “No, to the Right” – Online Language Corrections for Robotic Manipulation via Shared Autonomy
            Yuchen Cui*, Siddharth Karamcheti*, Raj Palleti, Nidhya Shivakumar, Percy Liang, Dorsa Sadigh.
            ACM/IEEE International Conference on Human Robot Interaction (HRI), March 2023.
            [pdf] [homepage] [code]

            2022

            Eliciting Compatible Demonstrations for Multi-Human Imitation Learning
            Kanishk Gandhi, Siddharth Karamcheti, Madeline Liao, Dorsa Sadigh.
            Conference on Robot Learning (CoRL), December 2022.
            [pdf] [homepage]

            What Makes Representation Learning from Videos Hard for Control?
            Tony Z. Zhao, Siddharth Karamcheti, Thomas Kollar, Chelsea Finn, Percy Liang.
            2nd Workshop on Scaling Robot Learning @ RSS 2022, June 2022.
            (Workshop) Best Paper Award Finalist
            [pdf]

            Shared Autonomy for Robotic Manipulation with Language Corrections
            Siddharth Karamcheti*, Raj Palleti*, Yuchen Cui, Percy Liang, Dorsa Sadigh.
            Workshop on Learning with Natural Language Supervision (NL-Supervision) @ ACL 2022, May 2022.
            [pdf]

            2021

            ELLA: Exploration through Learned Language Abstraction
            Suvir Mirchandani, Siddharth Karamcheti, Dorsa Sadigh.
            Conference on Neural Information Processing Systems (NeurIPS), December 2021.
            [pdf] [talk] [slides] [code]

            LILA: Language-Informed Latent Actions
            Siddharth Karamcheti*, Megha Srivastava*, Percy Liang, Dorsa Sadigh.
            Conference on Robot Learning (CoRL), November 2021.
            [pdf] [homepage] [code] [poster]

            On the Opportunities and Risks of Foundation Models
            Center for Research on Foundation Models (CRFM) – 100+ authors, directed by Percy Liang.
                   - Robotics (§2.3): Siddharth Karamcheti (Lead), Annie Chen, Suvir Mirchandani, Suraj Nair, Krishnan Srinivasan, Kyle Hsu, Jeannette Bohg, Dorsa Sadigh, Chelsea Finn.
                   - Interaction (§2.5): Joon Sung Park, Chris Donahue, Mina Lee, Siddharth Karamcheti, Dorsa Sadigh, Michael Bernstein.
            [pdf] [homepage] [workshop] [press]

            Mind Your Outliers! Investigating the Negative Impact of Outliers on Active Learning for Visual Question Answering
            Siddharth Karamcheti, Ranjay Krishna, Li Fei-Fei, Christopher D. Manning.
            Annual Meeting of the Association for Computational Linguistics (ACL-IJCNLP), August 2021.
            Outstanding Paper Award
            [pdf] [talk] [slides] [code] [other coverage]

            Targeted Data Acquisition for Evolving Negotiation Agents
            Minae Kwon, Siddharth Karamcheti, Mariano-Florentino Cuéllar, Dorsa Sadigh.
            International Conference on Machine Learning (ICML), July 2021.
            [pdf] [talk] [slides]

            Learning Visually Guided Latent Actions for Assistive Teleoperation
            Siddharth Karamcheti, Albert J. Zhai, Dylan P. Losey, Dorsa Sadigh.
            Learning for Dynamics and Control (L4DC), June 2021.
            [pdf] [talk] [slides] [code] [poster]

            2020

            Learning Adaptive Language Interfaces through Decomposition
            Siddharth Karamcheti, Dorsa Sadigh, Percy Liang.
            Workshop for Interactive and Executable Semantic Parsing (IntEx-SemPar) @ EMNLP 2020, November 2020.
            [pdf] [slides]

            Generating Interactive Worlds with Text
            Angela Fan*, Jack Urbanek*, Pratik Ringshia, Emily Dinan, Emma Qian, Siddharth Karamcheti, Shrimai Prabhumoye, Douwe Kiela, Tim Rocktäschel, Arthur Szlam, and Jason Weston.
            Association for the Advancement of Artificial Intelligence (AAAI), February 2020
            [pdf] [dataset]

            2019

            Finding Generalizable Evidence by Learning to Convince Q&A Models
            Ethan Perez, Siddharth Karamcheti, Rob Fergus, Jason Weston, Douwe Kiela, and Kyunghyun Cho.
            Empirical Methods in Natural Language Processing (EMNLP), November 2019
            [pdf] [blog post] [code]

            Learning to Speak and Act in a Fantasy Text Adventure Game
            Jack Urbanek, Angela Fan, Siddharth Karamcheti, Saachi Jain, Samuel Humeau, Emily Dinan, Tim Rocktäschel, Douwe Kiela, Arthur Szlam, and Jason Weston.
            Empirical Methods in Natural Language Processing (EMNLP), November 2019
            [pdf] [dataset]

            Improving Grey-Box Fuzzing by Modeling Program Control Flow
            Siddharth Karamcheti, Gideon Mann, and David Rosenberg
            Workshop on Machine Learning for Software Engineering (ML4SE), June 2019
            [pdf] [slides]

            Grounding Natural Language Instructions to Semantic Goal Representations for Abstraction and Generalization
            Dilip Arumugam*, Siddharth Karamcheti*, Nakul Gopalan, Edward C. Williams, Mina Rhee, Lawson L.S. Wong, and Stefanie Tellex
            Autonomous Robots (AuRO), February 2019
            [free-to-read pdf]

            2018

            Adaptive Grey-Box Fuzz Testing with Thompson Sampling
            Siddharth Karamcheti, Gideon Mann, and David Rosenberg
            11th ACM Workshop on Artificial Intelligence and Security (AISEC), October 2018
            Oral Presentation
            [pdf] [slides]

            2017

            Modeling Latent Attention within Neural Networks
            Christopher Grimm, Dilip Arumugam, Siddharth Karamcheti, David Abel, Lawson L.S. Wong, and Michael Littman
            Preprint
            [pdf]

            A Tale of Two DRAGGNs: A Hybrid Approach for Interpreting Action-Oriented and Goal-Oriented Instructions
            Siddharth Karamcheti, Edward C. Williams, Dilip Arumugam, Mina Rhee, Nakul Gopalan, Lawson L.S. Wong, and Stefanie Tellex
            1st Workshop in Language Grounding for Robotics (RoboNLP) @ ACL, August 2017
            Best Paper Award
            [pdf]

            Accurately and Efficiently Interpreting Human-Robot Instructions of Varying Granularities
            Dilip Arumugam*, Siddharth Karamcheti*, Nakul Gopalan, Lawson L.S. Wong, and Stefanie Tellex
            Robotics: Science and Systems (RSS), June 2017
            [pdf]


            Blog Posts

            The Annotated S4 – Efficiently Modeling Long Sequences with Structured State Spaces
            Sasha Rush and Siddharth Karamcheti – January, 2022.
            [ICLR blog track] [code] [original paper]

            Mistral – A Journey towards Reproducible Language Model Training
            Siddharth Karamcheti* and Laurel Orr* – August, 2021.
            Team: Jason Bolton, Tianyi Zhang, Karan Goel, Avanika Narayan, Rishi Bommasani, Deepak Narayanan
            Advisors: Tatsunori Hashimoto, Dan Jurafsky, Christopher D. Manning, Christopher Potts, Christopher RĂ©, Percy Liang
            [code] [checkpoints] [talk]