Cube Sandbox Blog
Welcome to the Cube Sandbox blog — release notes, technical deep-dives, and community stories.
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Cube Sandbox v0.3.0: A Time Machine and a Cloning Booth for Your AI AgentsJune 3, 2026 · Cube Sandbox Team
In modern AI Agent stacks, the sandbox plays the role of a "secure runtime" — executing model-generated code and tool calls. Cube Sandbox v0.3.0, with 82 commits from 22 contributors, is a foundational architecture upgrade aimed at high-concurrency, long-horizon, and reinforcement-learning workloads.