# DeepSeek details DSec sandbox infrastructure for agent training

> Source: <https://technode.com/2026/09/23/deepseek-dsec-agent-training-sandbox-infrastructure/>
> Published: 2026-09-23 09:14:20+00:00

A paper posted to arXiv details DeepSeek Elastic Compute, or DSec, a sandbox platform designed for large-scale agent training. DeepSeek founder Liang Wenfeng is listed among the paper’s 130-plus authors.

DSec unifies function-call, container, microVM and full-VM sandboxes, while coordinating their lifecycle with reinforcement learning workloads. The paper says a production-scale unit spans around 160 nodes, supports about 3 million sandboxes per day and more than 380,000 concurrent sandboxes, and can create more than 5,000 sandboxes per second. [[arXiv](https://arxiv.org/abs/2609.22978)]