亚马逊云推出AI芯片与“前沿”智能体

Core Insights - Amazon's stock price declined by 1% during early trading on Wednesday [1][2] - At the re:Invent 2025 conference, Amazon introduced Trainium3 UltraServers, new Nova models, and autonomous frontier agents [1][2] - Amazon partnered with Nvidia to offer on-premises AI factories [1][2]