AWS, GCP, Azure, Cloudflare Offer Agent Sandboxes—Each Uses a Different Isolation Stack
The four hyperscalers now provide native sandboxes for executing untrusted AI agent code, but they built them on four distinct isolation technologies—Firecracker microVMs, gVisor, Hyper‑V, and container‑based VMs. The divergence forces developers to compare runtime limits, performance, and credential safety, shaping the next wave of secure AI workloads across clouds.