CubeSandboxHardware-isolated microVM sandboxes for AI agents — sub-60ms boot, <5MB overhead, E2B-compatible API, self-hosted on your own KVM nodes.
Why switchBoth give agents hardware-isolated microVMs in under 100ms. CubeSandbox is Linux/KVM with an E2B-compatible API for self-hosted fleets; ArcBox is the macOS-native runtime — its own VMM — with Docker compatibility on the side.
Full comparison → forkdfork() for agent microVMs: children fork copy-on-write from a warm Firecracker parent — 100 KVM-isolated VMs in ~100ms, live-VM branching in ~56ms, portable snapshots from a hub.
Why switchBoth are sandbox primitives for agents rather than services. forkd forks warm Firecracker VMs on Linux/KVM; ArcBox boots microVMs on Apple's hypervisor with a Docker-compatible engine beside them.
Full comparison → ephemora-cellCapability-based WASM sandbox for MCP tools and agent-generated code: wasmtime + WASI with fuel, memory, time and I/O caps per run, sub-ms warm execution and signed (JCS/ES256) execution records.
Why switchTwo answers to 'where does agent-written code run': arcbox gives a real container/VM on macOS, ephemora-cell a sub-millisecond WASM capability boundary â pick by whether the workload needs an OS.
Full comparison → OpenSandboxCNCF-landscape sandbox platform for AI agents: multi-language SDKs, unified API, CLI and MCP over Docker/Kubernetes runtimes — coding agents, GUI agents, evals and RL training.
Why switchOpenSandbox is a sandbox platform — SDKs, API, MCP — over Docker or Kubernetes; ArcBox is the runtime underneath that class of thing on a Mac, with the sandbox exposed directly through abctl.
Full comparison → cuaComputer-use infrastructure for agents: sandboxed Linux, macOS and Windows desktops locally or in the cloud, Cua Driver for native apps (CLI/MCP/SDK), Lume VMs, CUA-S1 models, Cua Bench.
Why switchBoth give agents local VMs on Apple Silicon; arcbox is a Docker-compatible runtime with sub-100ms sandboxes, Cua's Lume runs full macOS and Linux desktops for computer use.
Full comparison →