cua alternatives
Curated alternatives to cua — and why you'd switch.
gym-anything
CMU framework that turns real software — browsers, IDEs, EMRs, CAD — into standardized agent environments: start the app, hand the agent a task, score it with automatic verifiers.
Why switchBoth turn real software into graded agent tasks; gym-anything standardizes environments behind automatic verifiers, Cua Bench creates tasks on Cua desktops and exports trajectories for training.
Full comparison →arcbox
Open-source container and VM runtime for macOS in pure Rust: drop-in Docker engine, sub-100ms agent sandboxes (`abctl claude`), full Linux VMs and throwaway macOS guests on one daemon.
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 →OpenSandbox
CNCF-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 switchBoth provide sandboxes for GUI agents; OpenSandbox spans coding, GUI and eval workloads over Docker and Kubernetes, Cua centres on full desktops with input, video and a native-app driver.
Full comparison →