Noometry

Model comparison

Muse Spark 1.1 vs Muse Spark 1.3

Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 49.9 on the Noometry Index.

Last verified . 30 shared benchmarks.

Muse Spark 1.1 Meta

49.9

Rank #51 Confirmed

Muse Spark 1.3 Meta

54.8

Rank #27 Confirmed

Summary

  • They share 30 benchmarks with published results for both. Muse Spark 1.1 scores higher in 1 category and Muse Spark 1.3 in 9 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in math, where Muse Spark 1.3 leads 73.1 to 45.5.
  • The biggest single-benchmark swing is APEX-Agents: 31.8% for Muse Spark 1.1 and 57.8% for Muse Spark 1.3.
  • Both cost about the same: $1.25 input and $4.25 output per million tokens.

Side by side

Muse Spark 1.1Muse Spark 1.3
ProviderMetaMeta
Noometry Index49.954.8
Released2026-04-082026-09-02
WeightsProprietaryProprietary
Context window1.05M1.05M
Max output131K131K
Input $ / M tokens$1.25$1.25
Output $ / M tokens$4.25$4.25
Results tracked3737

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Category by category

Coding Muse Spark 1.3 leads

Muse Spark 1.1: 51.3 (#40), Muse Spark 1.3: 56.6 (#21)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena WebDev15421657
SciCode58.8%59.7%
LMArena Coding14981514
DeepSWE53.3%—
CursorBench—41.6%

Agentic & Tool Use Muse Spark 1.3 leads

Muse Spark 1.1: 30.8 (#73), Muse Spark 1.3: 38.6 (#30)

BenchmarkMuse Spark 1.1Muse Spark 1.3
APEX-Agents31.8%57.8%
GDP.pdf15%27.6%
τ²-bench Banking40.5%—
GBAEval7.9%—
Vending-Bench 26,520—

Reasoning Muse Spark 1.3 leads

Muse Spark 1.1: 47.1 (#44), Muse Spark 1.3: 54.0 (#27)

BenchmarkMuse Spark 1.1Muse Spark 1.3
NYT Connections (extended)84.9%85.1%
CritPt15.1%26%
LMArena Hard Prompts14861503
DTBench94.4%96.5%
LMCA49.9%53.9%
Epoch Capabilities Index154.21156.75
Chess Puzzles—38%
Mystery Game Puzzles—25%
Surface Evolver Bench52.5%—
Bench to the Future 3—0.14

Math Muse Spark 1.3 leads

Muse Spark 1.1: 45.5 (#76), Muse Spark 1.3: 73.1 (#21)

BenchmarkMuse Spark 1.1Muse Spark 1.3
ProofBench39%58%
LMArena Math14831494
FrontierMath (Tiers 1-3)—74.4%
FrontierMath Tier 4—46.3%
OTIS Mock AIME 2024-2025—99.2%

Knowledge Muse Spark 1.1 leads

Muse Spark 1.1: 53.1 (#59), Muse Spark 1.3: 42.6 (#95)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Expert14781516
SimpleQA Verified57.8%—

Multimodal Muse Spark 1.3 leads

Muse Spark 1.1: 42.6 (#29), Muse Spark 1.3: 43.7 (#22)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Vision12931309
LMArena Document14651471

Multilingual Too close to call

Muse Spark 1.1: 56.7 (#17), Muse Spark 1.3: 57.4 (#8)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Non-English14721481
LMArena Chinese15181529
LMArena French14941524
LMArena German14661515
LMArena Japanese14511474
LMArena Korean14581501
LMArena Russian14831490
LMArena Spanish14641490

Instruction Following Too close to call

Muse Spark 1.1: 76.5 (#39), Muse Spark 1.3: 77.5 (#22)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Instruction Following14571477

Long Context Too close to call

Muse Spark 1.1: 44.8 (#58), Muse Spark 1.3: 45.6 (#32)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Longer Query14621488

Writing & Preference Too close to call

Muse Spark 1.1: 73.4 (#11), Muse Spark 1.3: 73.6 (#9)

BenchmarkMuse Spark 1.1Muse Spark 1.3
LMArena Text14791490
LMArena Creative Writing14371455
EQ-Bench Creative Writing19271906
LMArena Multi-Turn14851482
EQ-Bench 41260—

Frequently asked questions

Is Muse Spark 1.1 better than Muse Spark 1.3?

Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 49.9 on the Noometry Index.

Which is cheaper, Muse Spark 1.1 or Muse Spark 1.3?

Muse Spark 1.3 is cheaper. It lists at $1.25 per million input tokens and $4.25 per million output tokens; Muse Spark 1.1 lists at $1.25 and $4.25.

Is Muse Spark 1.1 or Muse Spark 1.3 better for coding?

Muse Spark 1.3 scores higher on coding benchmarks: 56.6 versus 51.3 in the Noometry coding category.

Which has the bigger context window?

Both accept 1.05M tokens.

How many benchmarks do Muse Spark 1.1 and Muse Spark 1.3 share?

30 benchmarks have published results for both models. Muse Spark 1.1 has 37 scored results on Noometry and Muse Spark 1.3 has 37.

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