Arena.ai· @arena · X·· 2 小时前同新闻AI 评分62
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Meta 发布 Muse Spark Open，称其为迄今能力最强的美国开源权重模型，面向编码与智能体任务，擅长长周期任务、复杂软件工程和多步推理。模型规格为 816B 总参数、42B 激活参数、1M token 上下文窗口，原生支持文本、图像、视频和音频多模态。
同一新闻，精选展示《Meta 开源 Muse Spark Open：816B 多模态 MoE 模型》
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Muse Spark Open by @AIatMeta is now in the Arena. Head to Agent Arena to test it out, scores coming soon!
In Agent Arena, we measure models on millions of real-world, long-horizon agentic tasks from a global community of users. Models can access web search, filesystem, and terminal tools to complete complex workflows. The leaderboard measures model performance on outcomes relative to the average model using a causal tracing methodology.
Muse Spark Open is also available in Code Arena: WebDev, Image-to-WebDev, Text, and Vision.
Today we’re releasing Muse Spark Open, the most capable US open-weight model to date. Built for coding and agentic work, it excels at long-horizon tasks, complex software engineering, and multi-step reasoning. Key Model Specs: → 816B total / 42B active parameters → 1M token context window → Natively multimodal across text, image, video, audio在 X 查看被引用的帖子
来源：Arena.ai · x.com