Amazon logo on brick office building facade with windows, San Francisco, California, Aug. 29, 2025.Smith Collection | Gado | Archive Photos | Getty ImagesThe head of Amazon's artificial general intelligence lab is leaving the company less than two years after joining through a so-called acqui-hire deal of his startup Adept. David Luan announced his departure Tuesday in a LinkedIn post, saying he will exit at the end of the week "to cook up something new." Amazon tapped Luan in December 2024 to o...