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Previous Meta Muse Spark release retained for compatibility after Muse Spark 1.2. It supports multimodal agentic tasks, coding, tool and computer use, and a 1 million token context window, but is superseded by Muse Spark 1.2 for current development.
It supports multimodal agentic tasks, coding, tool and computer use, and a 1 million token context window, but is superseded by Muse Spark 1.2 for current development.
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Quality Score
1279
Arena ELO
Undisclosed
Parameters
1M
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
14 of 22 public signals
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Jul 2026
Released
3/5 signals
3/4 signals
4/5 signals
1/4 signals
3/4 signals
Parameters
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Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Confident confidence
Gaps we are still tracking
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
To understand whether we're making genuine progress on reasoning, we entered our AI models in five STEM Olympiad competitions. The results: 🏅 Asian Physics Olympiad (APhO): Perfect score, theory exam
To understand whether we're making genuine progress on reasoning, we entered our AI models in five STEM Olympiad competitions. The results: 🏅 Asian Physics Olympiad (APhO): Perfect score, theory exam 🏅 International Physics Olympiad (IPhO): Perfect score, theory exam 🥇 https://t.co/fh1h8I1d3S
View sourceIntroducing Muse Spark 1.1
Muse Spark 1.1 is a multimodal reasoning model built for agentic tasks, with major gains in tool and computer use, coding, and multimodal understanding. With these improvements, Muse Spark 1.1 advances the performance-efficiency frontier. Evaluations For more details about our evaluations, see our report .
View source1279
ELO Score
1270 - 1288
95% Confidence
+/-9 points
6.8K
Battles
Aug 31, 2026
Last Updated