英伟达为RTX Spark笔记本补齐软件生态：740亿参数模型塞进24GB内存，10月15日开源发布
加州圣克拉拉——英伟达（NVIDIA）10月13日发布RTX Spark平台的软件生态更新，为10月16日开售的RTX Spark笔记本电脑做准备。
此次更新的重点是一款专为本地智能体（agent）运行设计的新模型Nemotron 3.5 Bolt 74B-A9B，定于10月15日发布。该模型采用混合专家架构，总参数740亿、每个词元激活约90亿参数，经2比特量化感知训练压缩后可装入24GB内存。英伟达称，该模型将完全开源，开放权重、训练数据与制作配方，发布时可通过llama.cpp、vLLM、Ollama、Unsloth与LM Studio运行，并可接入Hermes、OpenClaw等智能体应用。面向对话智能体与游戏角色的较小型号Nemotron 3.5 Bolt E4B定于10月23日发布。
同日，英伟达的免费开源工具PAIR（个人AI路由器）结束测试、转入正式发布：它可自动发现局域网内的兼容电脑，并把推理任务分发到多台设备，新版本新增对RTX Spark与llama.cpp的支持，以及从Hugging Face直接下载模型。此外，Broadcast 2.3加入模型上下文协议（MCP）服务器，GitHub Copilot、Perplexity等智能体应用获得新集成，英伟达与微软合作的沙盒智能体执行框架开放早期预览。
RTX Spark是英伟达的Windows PC平台，芯片整合Grace CPU与Blackwell GPU，最高配128GB统一LPDDR5X内存。首批笔记本由宏碁、华硕、戴尔、惠普、联想、微软、微星、技嘉等厂商推出，10月16日开售，其中微软Surface Laptop Ultra起价2599美元；紧凑型桌面机型定于11月上市。（据英伟达10月13日公告及Tech Times、VideoCardz等专业媒体报道）
Nvidia Readies RTX Spark Software Ecosystem: 74-Billion-Parameter Model Fits in 24GB, Open-Source Release Set for October 15
SANTA CLARA, California — Nvidia on October 13 published a software ecosystem update for its RTX Spark platform, ahead of the October 16 on-sale date for RTX Spark laptops.
The centerpiece is Nemotron 3.5 Bolt 74B-A9B, a new model built for running AI agents locally and scheduled for release on October 15. Using a mixture-of-experts design with 74 billion total parameters and about 9 billion active per token, plus 2-bit quantization-aware training, the model fits into 24GB of memory. Nvidia said it will be fully open source — weights, training data and recipes — and will run at launch through llama.cpp, vLLM, Ollama, Unsloth and LM Studio, with integrations for agent apps such as Hermes and OpenClaw. A smaller sibling, Nemotron 3.5 Bolt E4B, aimed at conversational agents and game characters, follows on October 23.
Also on October 13, Nvidia's free, open-source PAIR (Personal AI Router) moved out of beta to general availability: it discovers compatible PCs on a local network and distributes inference across them, with the release adding RTX Spark and llama.cpp support and direct model downloads from Hugging Face. Broadcast 2.3 shipped with a built-in Model Context Protocol (MCP) server, agent apps including GitHub Copilot and Perplexity gained new integrations, and a sandboxed agent execution framework built with Microsoft entered early preview.
RTX Spark is Nvidia's Windows PC platform, pairing a Grace CPU with a Blackwell GPU and up to 128GB of unified LPDDR5X memory. First laptops from Acer, ASUS, Dell, HP, Lenovo, Microsoft, MSI and Gigabyte go on sale October 16, with Microsoft's Surface Laptop Ultra starting at $2,599; compact desktop systems are slated for November. (Source: Nvidia's October 13 announcement and specialist outlets including Tech Times and VideoCardz)
图片来源：英伟达位于加州圣克拉拉的总部大楼（Endeavor），CC BY-SA 4.0（Wikimedia Commons，摄影：Coolcaesar）
