NVIDIA 发布自托管 Nemotron-3-Ultra 550B 指南，四台 DGX Spark 即可运行
想不依赖数据中心自己跑 550B 模型？NVIDIA 出了详细教程，四台 DGX Spark 就能拼出 OpenAI 兼容的端点。
NVIDIA 与 vLLM 合作发布 step-by-step 指南，教你用四台 DGX Spark 盒子组建私有集群，自托管 550B 参数的 Nemotron-3-Ultra 模型。
指南基于 vLLM 官方容器，可提供兼容 OpenAI 的端点。无需数据中心，适合构建私有 agent 工作流。
Great to see the @NVIDIAAI Nemotron team put out a step-by-step guide for self-hosting Nemotron-3-Ultra 550B without a datacenter. Four compact DGX Spark boxes pool into a single OpenAI-compatible endpoint, served from vLLM's official out-of-the-box container.
If you're building a private cluster of your own, don't miss this guide: 🔗 https://t.co/6kxdG5Ztde
🤖 Then wire that endpoint into your agent workflows, all on hardware you own.
This report is categorized under AITOP's "How-to" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to AI developer toolchains, coding agents, and engineering workflows and US-China foundation model benchmarks and commercialization comparison. Key entities and technical topics under continuous tracking include Nemotron-3-Ultra, NVIDIA, DGX Spark, vLLM.
Source attribution: curated from vLLM (@vllm_project). Cross-source corroboration: 11 independent sources have covered this development (including NVIDIA AI, Nous Research, LMSYS Org (SGLang)), confirming industry-wide signal strength.
