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Muse Spark 1.2

muse family · launched 2026-08-05

MultimodalReasoningToolsStructured
AITopic score67.7#32 overall

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows.

Evidence coverage100%8 evaluations · 3 institutions
Context / maximum output1M / 131.1ktokens
Cache / input / output$0.15 · $1.25 · $4.25USD per million tokens
Value / freshness63.2 / 79relative value · release freshness
Product profile

What this model supports

Inputtext, image, video, pdf, audio
Outputtext
Knowledge cutoffNot disclosed
WeightsProprietary / hosted
Capability profile

Strengths by domain

Coding—1 public results
Research & reasoning—2 public results
Professional work—2 public results
Knowledge & instruction—2 public results
Behind the score

Every result has a source

Raw results and standardized readings are shown together. Missing tests add neither points nor penalties.

Coding1 results

LiveBench 2.0 · CodingLiveBench78.20 scoreReading 78.2

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence

Research & reasoning2 results

LiveBench 2.0 · ResearchLiveBench90.00 scoreReading 90.0

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · ResearchAIHOT60.80 scoreReading 60.8

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Professional work2 results

AIHOT · ProfessionalAIHOT62.60 scoreReading 62.6

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
LiveBench 2.0 · ProfessionalLiveBench50.23 scoreReading 50.2

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Professional = long-agentic, browser, data-analysis and design average.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence

Knowledge & instruction2 results

LiveBench 2.0 · KnowledgeLiveBench67.70 scoreReading 67.7

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Knowledge uses the published LiveBench research suite.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · KnowledgeAIHOT61.20 scoreReading 61.2

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Human preference & indices4 results

AA IndexArtificial Analysis68.07 indexReading 67.7

Imported from Artificial Analysis. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: Muse Spark 1.2Open evidence
Arena TextLMArena1,483.6 EloReading 67.7

Direct LMArena text leaderboard result.

Open evidence
LiveBenchLiveBench62.40 scoreReading 62.4

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT aggregate leaderboardAIHOT60.50 scoreReading 60.5

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
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