AWS unveils new Nova 2 AI models, Trainium3 UltraServers and frontier agents at re:Invent 2025

Amazon Web Services announced a major expansion of its AI portfolio at re:Invent 2025, introducing the multimodal Nova 2 Omni model family, new Nova Forge tooling to let customers build custom models, and EC2 Trn3 UltraServers based on its next‑generation Trainium3 chip. AWS also previewed Trainium4 and launched new Bedrock AgentCore capabilities, including policy controls, evaluation tools and memory, plus a new class of autonomous 'frontier agents' and on‑prem 'AWS AI Factories' combining Nvidia and Trainium hardware. These moves aim to deepen AWS’s position in enterprise AI infrastructure and managed model services against rivals such as Microsoft Azure and Google Cloud.