I was referred by a friend and I went through one Phone Call and one On-Site (Virtual) interview. Phone call: 1 interviewer, one programming question (easy leetcode), few ML easy questions (bagging vs boosting, other supervised algorithms that I knew of, supervised vs unsupervised learning and my previous works) On-Site: 5 interviews with 5 different people. 3 interviews on my previous ML projects, general ML/Statistics questions, some questions about DL (both images and text). 1 programming interview and 1 based on LPs with manager.

Applied for Amazon AGI. After first round, it will go into full round of multiple interviews. Lots of modern LLM training technic questions. There are still some behavioral questions, but less than general Amazon roles.