[Tencent Cloud Announces Open Source Agent Framework Similar to OpenAI and Manus] Reported by Jinse Finance on April 21, Tencent Cloud officially announced the open-sourcing of Cube Sandbox. According to the introduction, this is an execution environment framework designed for AI Agents and is the industry's first open-source sandbox service that combines hardware-level isolation with sub-100-millisecond startup. Its compatibility with the E2B interface is at a drop-in level—whether built on the Manus technology stack, OpenAI Agents SDK, or other E2B ecosystem frameworks, Agent applications can directly point to Cube for execution without modifying business code.