Noometry

Model comparison

Grok 4.20 Multi-Agent vs Muse Spark 1.1

Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 45.5 on the Noometry Index.

Last verified . 19 shared benchmarks.

Grok 4.20 Multi-Agent xAI

45.5

Rank #62 Confirmed

Muse Spark 1.1 Meta

49.9

Rank #43 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Grok 4.20 Multi-Agent scores higher in 0 categories and Muse Spark 1.1 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Muse Spark 1.1 leads 52.8 to 39.7.
  • Grok 4.20 Multi-Agent is cheaper at $1.25 / $2.50 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.1.
  • Muse Spark 1.1 accepts more context: 1.05M tokens versus 1M.

Side by side

Grok 4.20 Multi-AgentMuse Spark 1.1
ProviderxAIMeta
Noometry Index45.549.9
Released2026-03-092026-04-08
WeightsProprietaryProprietary
Context window1M1.05M
Max output30K131K
Input $ / M tokens$1.25$1.25
Output $ / M tokens$2.50$4.25
Results tracked2036

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Category by category

Coding Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 42.4 (#91), Muse Spark 1.1: 50.8 (#38)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Coding14581497
DeepSWE—53.3%
LMArena WebDev—1542
SciCode—58.8%

Agentic & Tool Use Not comparable

Grok 4.20 Multi-Agent: —, Muse Spark 1.1: 33.9 (#45)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
τ²-bench Banking—40.5%
GBAEval—7.9%
GDP.pdf—15%
LMArena Search1204—
Vending-Bench 2—6,520

Reasoning Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 42.4 (#44), Muse Spark 1.1: 45.9 (#41)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
NYT Connections (extended)89.6%84.9%
LMArena Hard Prompts14481486
CritPt—15.1%
DTBench—94.4%
LMCA—49.9%
Surface Evolver Bench—52.5%
Epoch Capabilities Index—154.32

Math Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 36.6 (#106), Muse Spark 1.1: 44.0 (#67)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Math14411477
ProofBench—39%

Knowledge Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 39.7 (#116), Muse Spark 1.1: 52.8 (#55)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Expert14451480
SimpleQA Verified—57.8%

Multimodal Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 39.8 (#44), Muse Spark 1.1: 41.9 (#28)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Vision12591292
LMArena Document—1465

Multilingual Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 54.6 (#40), Muse Spark 1.1: 56.8 (#16)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Non-English14401471
LMArena Chinese14751518
LMArena French14671494
LMArena German14561466
LMArena Japanese14051445
LMArena Korean14161459
LMArena Russian14571482
LMArena Spanish14471471

Instruction Following Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 75.0 (#80), Muse Spark 1.1: 76.8 (#36)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Instruction Following14201457

Long Context Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 43.7 (#84), Muse Spark 1.1: 44.8 (#55)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Longer Query14301463

Writing & Preference Muse Spark 1.1 leads

Grok 4.20 Multi-Agent: 64.1 (#57), Muse Spark 1.1: 73.6 (#11)

BenchmarkGrok 4.20 Multi-AgentMuse Spark 1.1
LMArena Text14501479
LMArena Creative Writing14351440
LMArena Multi-Turn14511484
EQ-Bench Creative Writing—1927
EQ-Bench 4—1260

Frequently asked questions

Is Grok 4.20 Multi-Agent better than Muse Spark 1.1?

Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 45.5 on the Noometry Index.

Which is cheaper, Grok 4.20 Multi-Agent or Muse Spark 1.1?

Grok 4.20 Multi-Agent is cheaper. It lists at $1.25 per million input tokens and $2.50 per million output tokens; Muse Spark 1.1 lists at $1.25 and $4.25.

Is Grok 4.20 Multi-Agent or Muse Spark 1.1 better for coding?

Muse Spark 1.1 scores higher on coding benchmarks: 50.8 versus 42.4 in the Noometry coding category.

Which has the bigger context window?

Muse Spark 1.1 does, with 1.05M tokens against 1M.

How many benchmarks do Grok 4.20 Multi-Agent and Muse Spark 1.1 share?

19 benchmarks have published results for both models. Grok 4.20 Multi-Agent has 20 scored results on Noometry and Muse Spark 1.1 has 36.

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