Tencent's Open-Source CubeSandbox v0.7 Ships 60ms-Cold-Start MicroVMs for Agents
dr_cintas · x · 2026-09-12
CubeSandbox, Tencent's fully open-source self-hosted MicroVM sandbox for agents that execute code or drive browsers, released v0.7.0. Highlights:
- Sub-60ms cold start, <5MB overhead, thousands of sandboxes per machine
- Preview feature: cross-node pause/resume for migration and workload scheduling
- Suggested workflow: checkpoint as the agent works, roll back on failure, clone good states to run parallel agents and keep the best
- Upgrades no longer break existing templates and snapshots, plus faster networking and cleaner ops
Related event: Tencent Open-Sources CubeSandbox v0.7 for Agent Isolation(3 posts)→
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