PyData London 2025

Jay Alammar is co-author of Hands-On Large Language Models, published by O'Reilly Media. and Director and Engineering Fellow at Cohere (a pioneering creator of large language models).

Through his popular AI/ML blog, Jay has helped millions of researchers and engineers visually understand machine learning tools and concepts (e.g., The Illustrated Transformers, BERT, DeepSeek-R1, and others).