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Comparison of Meta: Muse Spark Open
1 modelmetaMeta: Muse Spark OpenRemove ×
What’s differentOpenRouter lists a 1,048,576-token context and up to 943,718 output tokens for this open-weight model aimed at agentic coding.
DateOct 15, 2026Released
Listed rate$1.25 in / $4.25 out/ 1M tokensbaseten · via Hugging Face · all routes ↗
Provider endpoints8 endpoints →
AA Intelligence ↗4.3.238.87 ↗Effort: xhigh · XhighIndependent result
AA-Briefcase ↗1.11,279.37 ↗Effort: xhigh · XhighIndependent result
GDPval-AA ↗2.11,401.12 ↗Effort: xhigh · XhighIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collection49.71% ↗Effort: xhigh · XhighIndependent result
Terminal-Bench 4.0 · AA ↗8.08% ↗Effort: xhigh · XhighHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collection58.45% ↗AA · Under reviewEffort: xhigh · XhighIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collection43.88% ↗Effort: xhigh · XhighIndependent result
GDP.pdf ↗AA Index 4.3.2 collection18.6% ↗Effort: xhigh · XhighIndependent result
CritPt ↗AA Index 4.3.2 collection14.86% ↗AA · Under reviewEffort: xhigh · XhighIndependent result
AA-Omniscience ↗AA Index 4.3.2 collection24.65 ↗Effort: xhigh · XhighIndependent result
AA-LCR ↗1.178.33% ↗Effort: xhigh · XhighIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)57.57% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)60.3% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)80.3% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)36% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)73.6% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)18.9% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)60.2% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)73.7% ↗Effort: max · single runIndependent result
Context window1M
Max output943.7K
Parameters—
Tool callingSupported
Structured outputSupported
Image inputSupported
Audio inputSupported
Video inputSupported
ReasoningSupported
Prompt cachingSupported
Open weightsSupported

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