muse spark open 发布：816B 参数美国开源权重模型，支持 1M 上下文
美国又出一个开源权重模型，816B 参数、百万 token 上下文，主打写代码和跑智能体长任务，可以关注下权重何时放出。
muse spark open 发布，总参数 816B、激活 42B，采用 MoE 结构，上下文长度达 1M token。
该模型原生支持多模态，主打编程与智能体场景，覆盖长周期任务、复杂软件工程和多步推理。据发布方 Alex Wang 介绍，这是迄今能力最强的美国开源权重模型。
1/ muse spark open is the most capable US open-weight model to date.
816B total params, 42B active. 1M-token context. natively multimodal. built for coding and agentic work like long-horizon tasks, hard software engineering, multi-step reasoning.
america! 🇺🇲 https://t.co/NjtOB7aY9D
This report is categorized under AITOP's "Models" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to US-China foundation model benchmarks and commercialization comparison and AI developer toolchains, coding agents, and engineering workflows. Key entities and technical topics under continuous tracking include muse spark open, 开源模型, 多模态, 编程助手.
Source attribution: curated from Alexandr Wang (Meta MSL) (@alexandr_wang).
