马斯克首席AI脑与莱姆病抗争！曾师从丘成桐，杨格宣布辞职

Core Insights - Greg Yang, co-founder and core architect of xAI, has announced his departure from the company due to ongoing health issues related to Lyme disease, transitioning to an informal advisory role [2][5][6] - Yang has been a key figure in developing the mathematical framework behind Elon Musk's vision for "understanding the universe AI" [3][10] Group 1: Departure and Health Issues - Yang's resignation marks a significant loss for xAI, as he was considered a vital member of the team [5] - He has publicly shared his struggles with Lyme disease, which has severely impacted his health and productivity since 2025 [6][8] - Yang's symptoms included extreme fatigue and a decline in creativity, leading to a diagnosis of Lyme disease after extensive medical evaluations [6][8] Group 2: Contributions to AI - Greg Yang is recognized as a mathematical genius and a pivotal figure in AI, having developed the Tensor Programs theory, which aims to transform deep learning into a rigorous science [13][19] - His work has significantly reduced computational costs for training large models, making it feasible to transfer hyperparameters from smaller models to larger ones [19] - Yang's ambition includes establishing a unified theory of large-scale deep learning, which would enhance understanding of neural network expansion and guide safety and alignment research [19] Group 3: Company Context - Yang's departure follows a trend of leadership changes at xAI, with two other co-founders having left the company in the past year [19] - Despite these changes, Musk has promised the launch of Grok 5 in the first half of the year, indicating ongoing developments within the company [20]