Google open-sources Agent Substrate, now available on GKE
Agent Substrate is a Kubernetes-native execution layer that suspends idle AI agents to free CPU and memory, restores full state in under 500ms, packs 1,000+ dormant environments per host, and isolates agents in microVMs or gVisor sandboxes.
Google just dropped new Kubernetes infrastructure built to run MILLIONS of AI agents. And they open-sourced the whole thing. This is Agent Substrate, and it is now available on GKE. Instead of keeping thousands of idle AI agents sitting around consuming CPU and memory, Agent Substrate can suspend them, release those resources, and bring them back in milliseconds when needed. Here is what it does: → Runs 10x more agent environments on the same compute compared to standard container runtimes → Suspends idle agents and resumes them in under 500ms while preserving their full state → Supports 500+ agent suspend/resume operations per second → Packs 1,000+ dormant agent environments onto a single host → Runs agents inside isolated microVMs or gVisor sandboxes for stronger security → Works with Kubernetes APIs and can run on GKE or other Kubernetes clusters AI agents spend most of their time waiting for models, tools, APIs, or humans. Keeping compute reserved while they wait gets expensive fast. Agent Substrate suspends idle agents, frees those resources, and restores them when needed. Google is basically building a Kubernetes-native execution layer for running AI agents at massive scale. Announcement here: https://cloud.google.com/blog/products/containers-kubernetes/agent-substrate-available-on-gke