NVIDIA open-sources Agent Substrate and donates it to the CNCF
11/10/2026 — 11/12, 00:18·2 sources (all)·2 reports (all)
Key takeaways
- NVIDIA has released Agent Substrate as an open-source project and donated it to the CNCF Sandbox, according to the NVIDIA Developer Blog. Th…
Background & analysis
On November 10, 2026, NVIDIA Developer Blog announced that NVIDIA has open sourced Agent Substrate, a runtime for sandboxed agents, and donated it to the CNCF Sandbox.
According to the post, AI agents spend most of their time idle, waiting on a human prompt, a tool result or a model response, and Kubernetes was not built for that pattern. Running one Pod per session holds memory for sessions that are not doing anything, while deleting Pods between turns pays a multi-second cold start every time and loses the agent's state. RL post-training hits the same wall.
Agent Substrate, which provides a zero-trust runtime for sandboxed agents, addresses this by reusing a small number of working Pods and checkpointing idle sessions. In that setup it achieves up to 10x higher agent density than standard containers.
The open source Agent Substrate pairs with NVIDIA Dynamo and KAI Scheduler within the NVIDIA DSX AI factory platform to coordinate agent execution, inference, and shared cluster resources. The project has now been donated to the Cloud Native Computing Foundation (CNCF) Sandbox, and the post does not give a timeline for further development or adoption.
AI-generated from 1 reports · updated 3 days ago
Latest turnGoogle has open-sourced Agent Substrate to provide secure sandboxing for enterprise AI agents. The tool aims to isolate code-writing and tool-using agents while keeping runaway compute costs in check.
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Reports on this story headlines open the original
Google has open-sourced Agent Substrate to provide secure sandboxing for enterprise AI agents. The tool aims to isolate code-writing and tool-using agents while keeping runaway compute costs in check.
SiliconANGLEAI score 65
NVIDIA has released Agent Substrate as an open-source, zero-trust runtime for sandboxed agents and donated it to the CNCF Sandbox. It multiplexes sessions over a small pool of worker Pods and checkpoints idle sessions to support 10x higher density than standard containers, while working with Dynamo and KAI Scheduler.
NVIDIA Developer BlogFirst-partyAI score 62
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