Arena adds Meta's Muse Spark Open to Agent Arena for testing

AISummary

Arena says Meta's Muse Spark Open is now in Agent Arena, where users can test it and scores are coming soon. The quoted Meta release describes an 816B total parameter, 42B active parameter open-weight model with a 1M token context window, built for coding and agentic work. It is also available in Code Arena's WebDev, Image-to-WebDev, Text, and Vision categories.

AIWhy it matters

The post links Meta's new open-weight Muse Spark Open to Arena's agent and coding evaluations, where readers can test it before scores arrive.

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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.

Image from @AIatMeta's post — AI at Meta@AIatMeta

Source: Arena.ai · x.comPublished Oct 15, 2:19 PM ET

Arena adds Meta's Muse Spark Open to Agent Arena for testing

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