Muse Spark Open by @AIatMeta is now in the Arena. Head to Agent Arena to test it out, scores coming ...
TL;DR · AI 摘要
Arena.ai on X: "Muse Spark Open by @AIatMeta is now in the Arena. Head to Agent Arena to test it out, scores coming soon...
核心要点
- 主题聚焦：Muse Spark Open by @AIatMeta is now in the Arena
- 来源：lmarena.ai(@lmarena_ai)，建议结合原文判断细节。
- AI 分析暂不可用，本条为保底评分与摘要。
Arena.ai on X: "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… / X
Arena.ai
@arena
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.
AI at Meta
@AIatMeta
14h
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
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6:19 PM · Oct 15, 2026
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