Muse Spark 1.1

meta/muse-spark-1.1

Muse Spark is a natively multimodal reasoning model with support for tool-use, visual chain of thought, and multi-agent orchestration.

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Context window: 1M
Input: Document · Image · Text · Video
Output: Text
Released: 2026-04-08

Max output: 32K
Weights: Closed
Capabilities: Attachments, Reasoning, Structured, Temperature, Tool call

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Performance

Overall capability

52.6/100

Coding: 50.0
Reasoning: 59.6
Professional work: 50.0
Knowledge & language: 53.2


Arena Agent Overall	Professional work	LMArena	2026-11-08
MLCR-AA（Artificial Analysis）Muse Spark 1.1 (Xhigh)	Knowledge & language	Artificial Analysis	2026-11-05
Chess Puzzles	Reasoning	Epoch AI	2026-11-05
MCP Atlas	Professional work	Scale AI	2026-11-05
Humanity’s Last ExamMuse Spark 1.1 (Xhigh)	Reasoning	Artificial Analysis	2026-11-05
Vibe Code Bench v1.1	Coding	Vals AI	2026-11-05
Terminal-Bench 4.0 (AA rerun)Muse Spark 1.1 (Xhigh)	Coding	Artificial Analysis	2026-11-05
SimpleQA Verified	Knowledge & language	Epoch AI	2026-11-05

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ModelRegistry · Catalog updated 2026-11-10