Summary
On August 6, 2026 AWS made AgentCore Runtime Instances generally available, letting teams run Bedrock agents on their own Amazon EC2 instances without managing infrastructure. It complements AgentCore's microVM runtime by opening the full range of EC2 instance types for sustained, resource-intensive, or specialized-hardware agents, while AWS handles provisioning, patching, scaling, and lifecycle.
What changed
AWS announced general availability of AgentCore Runtime Instances, a Bedrock AgentCore option that runs agents on customer-selected EC2 instance types without customers managing the underlying infrastructure, alongside the existing microVM-based runtime.
Why it matters
Giving agents access to the full EC2 instance catalog — including GPU and high-memory types — with managed provisioning lets enterprises run heavier, longer-lived agents on AWS, and strengthens Bedrock AgentCore as the managed control plane competing with Cloudflare, Google, and Microsoft for production agent workloads.
Evidence excerpt
runtime instances, a new feature in Amazon Bedrock AgentCore that lets you run agents on your own Amazon EC2 instances without managing infrastructure.