signalHacker News Best2026-09-27
DeepSeek Elastic Compute (DSec)
DeepSeek Elastic Compute (DSec) is a production sandbox platform for LLM agent training, offering FnCall, container, microVM, and full-VM backends through a unified SDK. It uses Fire-Flyer File System (3FS) for on-demand image loading and is co-designed with reinforcement learning to preserve rollout state. A single unit of about 160 nodes serves roughly 3 million sandboxes daily, with over 380,000 concurrent sandboxes and over 5,000 creations per second.
- for who
- Engineers and researchers building large-scale agentic training and evaluation systems for LLMs.
- why now
- DeepSeek's newly published paper details a production sandbox platform for agentic training, enabling massive scale.
- what changes
- They can run stateful, isolated agent workloads at massive scale with high density, without managing cluster placement or image distribution.
- to do
- Adopt DSec's architecture and design patterns for elastic sandbox infrastructure in agentic training.
key points
- DSec unifies four sandbox backends: FnCall, container, microVM, full-VM
- One production unit: 160 nodes, 3 million sandboxes per day, 380,000 concurrent
- Co-designed with RL framework, preserves rollout state, mitigates reward hacking
#deepseek#sandbox infrastructure#distributed computing#agent training
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