Google has released AX, a new open-source orchestrator built to address the operational challenges of running autonomous AI agents at scale. Announced via InfoQ, the project is hosted on GitHub under the google/ax repository and at agentexecutor.io, and is licensed under Apache 2.0.
AX is designed as a declarative runtime that sits on top of Agent Substrate, an execution runtime engineered for dense actor multiplexing. Unlike conventional container orchestration, which assumes short-lived, stateless services, AX treats each agent session as an isolated actor sandbox with strict CPU and memory boundaries. When an agent enters an idle state—for example, while waiting for an inference response or a tool call—the platform checkpoints the execution state and suspends the actor. Resumption is designed to happen in sub-second intervals with zero cold-start delay, allowing dozens of tasks to be multiplexed onto shared host workers.
The platform exposes four declarative primitives under the ax.io/v1alpha1 API group: Task defines the execution lifecycle and sandbox constraints; Workspace handles pre-configured file systems or environments; Gateway manages network access; and Model serves as an abstraction for AI model endpoints. Together, these primitives provide a Kubernetes-style control plane for agent workloads.
The motivation for AX stems from the mismatch between traditional infrastructure and agent behavior. Autonomous agents are stateful, bursty, and long-running. They perform compute-intensive reasoning, tool execution, and local code evaluation, but also spend prolonged periods idle while waiting for model responses or human input. In conventional Kubernetes setups, keeping dedicated sandboxes active during idle phases wastes compute, while cold starts in standard container runtimes degrade interactive agent loops.
AX is built on systems research from teams across Google and Google DeepMind, and represents an effort to bring the operational rigor of container orchestration to the emerging class of agentic AI systems.