AWS re:Invent 2025 Opens with Major AI Infrastructure and Agent Announcements

Summary

AWS re:Invent 2025 kicked off in Las Vegas on December 1, with AWS CEO Matt Garman delivering a keynote declaring that "agents will have as much impact on your business as the internet or the cloud." The conference ran December 1-5 and featured a dense series of AI-focused announcements across infrastructure, models, and agent platforms. On the infrastructure side, AWS unveiled Amazon EC2 Trn3 UltraServers powered by its first 3nm AI training chip, Trainium3, packing up to 144 chips into a sing