Lukasz Kaiser

Research Scientist at OpenAI, Co-creator of GPT-5, GPT-4, and the Transformer architecture

Lukasz is a researcher at OpenAI, previously part of the Google Brain Team. He works on fundamental aspects of deep learning. He has co-invented reasoning models (o1, o3), ChatGPT and GPT-4 and GPT-5, and co-authored Transformers and the TensorFlow system. Before that, Lukasz was a tenured researcher at University Paris Diderot and worked on logic and automata theory. He received his PhD from RWTH Aachen and his MSc from University of Wroclaw.