Muse Spark 1.2 (xhigh)

39.6 Intelligence Index2026-08-05ReasoningClosed weights

Artificial Analysis Indices

Extra high

Intelligence39.6

Coding72.2

Agentic43.2

Standard Benchmarks

GPQA Diamond90.4%

HLE45.5%

SciCode57.4%

AA-LCR79.0%

Terminal-Bench 2.180.1%

τ-Bench Banking34.8%

Additional benchmarks

OpenRouter DA 3d Win Rate54.0%

OpenRouter DA Agenticgamedev Win Rate42.7%

OpenRouter DA Androidnative Win Rate53.5%

OpenRouter DA Asciiart Win Rate58.6%

OpenRouter DA Codecategories Win Rate53.9%

OpenRouter DA Dataviz Win Rate61.7%

OpenRouter DA Fullstack Win Rate48.3%

OpenRouter DA Gamedev Win Rate51.9%

OpenRouter DA Htmlslides Win Rate40.0%

OpenRouter DA Mobileapps Win Rate46.9%

OpenRouter DA Python Pptxslides Win Rate48.6%

OpenRouter DA Svg Win Rate56.4%

OpenRouter DA Uicomponent Win Rate54.0%

OpenRouter DA Webapps Win Rate52.0%

OpenRouter DA Website Win Rate53.7%

Capabilities

Context window1.0M tokens

Maximum output944K tokens

Openness Index53 / 100

OpenRouter parameters

include_reasoningmax_tokensreasoningreasoning_effortrepetition_penaltyresponse_formatstructured_outputstemperaturetool_choicetoolstop_ktop_p

Input

textimagespeechvideo

Output

text

Performance

Output speed230 tokens/s

Time to first token (TTFT)15.52 s

Time to first answer24.21 s

OpenRouter weekly rank#144

End-to-end response (500 t)26.4 s

Pricing

Input tokens$1.25

Cache Hit$0.150

Output tokens$4.25

Blended (3:1)$2.00

Meta-information

Tokens used (verbosity)130.0M

Evaluation cost$1385.40