Core Insights - Rohit Prasad, a senior executive overseeing Amazon's artificial general intelligence (AGI) unit, is leaving the company at the end of this year [1] - Amazon is reorganizing its AGI unit under a broader division that will also encompass its silicon development and quantum computing teams [2] - The new division will be led by Peter DeSantis, a long-time Amazon executive with 27 years of experience, currently serving as a senior vice president in the cloud unit [2]