Jiatao Gu is an Assistant Professor at UPenn and a Staff Research Scientist at Apple AI/ML with 12 years of experience building generative, multi-modal machine learning systems that bridge language, vision, video and 3D. He previously led research at Meta AI (FAIR) and contributed core improvements to the widely used fairseq toolkit—advancing non‑autoregressive transformers, CUDA-optimized Levenshtein decoding, and length beam search—highlighting both research depth and production-aware engineering. Trained at Tsinghua and HKU (Ph.D.), his work focuses on world modeling, iterative reasoning, and decision-making for AI agents operating in complex physical environments. Known for combining foundational ML research with practical optimizations, he aims to make models that are efficient, flexible, scalable and knowledge-rich. Based in New York, he blends academic rigor with industry impact, often taking on low-level implementation challenges that accelerate model deployment.
12 years of coding experience
4 years of employment as a software developer
University of Tokyo
The University of Hong Kong (HKU)
Bachelor's degree Electronic Engineering, Bachelor's degree Electronic Engineering at Tsinghua University
Facebook AI Research Sequence-to-Sequence Toolkit written in Python.
Role in this project:
ML Engineer
Contributions:21 commits, 58 comments, 1 issue in 3 months
Contributions summary:Jiatao's primary contributions involve enhancing and refining the fairseq library, with a focus on Non-Autoregressive Transformers (NAT) and related models. This is evident in the implementation of new functionalities, like the "new_arange" function and correcting bugs in the returning attention values. Further work includes refactoring NAT implementations, incorporating CUDA optimizations for Levenshtein distance calculations, and integrating advanced decoding strategies such as length beam search. The user is working on core improvements to support sequence-to-sequence modeling with transformers.
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Jiatao Gu - Assistant Professor at University of Pennsylvania