Liam Fedus is a founder and research-driven engineering leader with 12 years of experience at the intersection of deep learning and product-grade AI systems. He helped create ChatGPT as an early RL contributor at OpenAI, later leading post-training research that shipped major model families, and now co-founded Periodic Labs to accelerate science and engineering. His background spans top-tier research labs—Google Brain and MILA—grounded in a physics-first education from MIT and Cambridge and a PhD in computer science focused on generative planning for RL. Liam combines hands-on model R&D with product delivery experience, unusually fluent in both evaluation/data engineering and post-training model optimization.
12 years of coding experience
10 years of employment as a software developer
Bachelor of Science (B.S.) Physics, Bachelor of Science (B.S.) Physics at Massachusetts Institute of Technology
Bachelor of Science (BS) Physics, Bachelor of Science (BS) Physics at University of Cambridge
University of California, San Diego
Doctor of Philosophy - PhD Computer Science, Doctor of Philosophy - PhD Computer Science at Université de Montréal
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