Amazon Unveils Broad AI Push At AWS re:Invent

Amazon Web Services expanded its enterprise AI strategy at re:Invent 2025 with new model-customization tools, upgraded chips, and stronger agent capabilities. AWS rolled out new Bedrock and SageMaker features — including serverless customization and Reinforcement Fine Tuning — to simplify building custom enterprise LLMs. The company unveiled its Trainium3 chip, the UltraServer system, teased Trainium4, and introduced new AgentCore controls along with three “Frontier” agents for coding, security, and DevOps. AWS also launched “AI Factories,” allowing enterprises and governments to deploy AWS AI systems inside their own data centers.