英伟达(NVDA.O)盘前跌超3%，此前公司推出Lepton云平台，并将于第三季度推出下一代GB300人工智能系统。

Core Insights - Nvidia (NVDA.O) experienced a pre-market decline of over 3% following the launch of its Lepton cloud platform and the announcement of the next-generation GB300 artificial intelligence system set to debut in the third quarter [1] Group 1 - Nvidia's stock dropped more than 3% in pre-market trading [1] - The company introduced the Lepton cloud platform [1] - The next-generation GB300 AI system is scheduled for release in the third quarter [1]