AWS Expands Bedrock AgentCore Runtime to 8 vCPUs and Scale-to-Zero for Idle Agents

AWS upgraded the runtime layer of Amazon Bedrock AgentCore with up to four times more compute per session, now reaching 8 vCPUs and 32GB of memory, plus support for 10GB container images. The update also reclaims unused memory within minutes and lets idle agents scale to zero, which AWS says can cut memory use per multi-turn session by up to 68%. AWS also introduced baseline pricing that sets a minimum memory allocation per session to support always-on agents.

Why it matters: Teams running production AI agents can now run heavier workloads and control costs for agents that spend most of their time waiting on models, tools, or humans, which affects how they architect and budget agent deployments.