Model comparison

Amazon Nova Experimental Chat 26 02 10 vs Muse Spark 1.3

Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 44.5 on the Noometry Index.

Last verified . 12 shared benchmarks.

Muse Spark 1.3 Meta

54.8

Rank #27 Confirmed

Summary

  • They share 12 benchmarks with published results for both. Amazon Nova Experimental Chat 26 02 10 scores higher in 0 categories and Muse Spark 1.3 in 8 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in math, where Muse Spark 1.3 leads 73.1 to 39.3.

Side by side

Amazon Nova Experimental Chat 26 02 10 and Muse Spark 1.3 specifications
Amazon Nova Experimental Chat 26 02 10Muse Spark 1.3
ProviderAmazonMeta
Noometry Index44.554.8
Released—2026-09-02
WeightsProprietaryProprietary
Context window—1.05M
Max output—131K
Input $ / M tokens—$1.25
Output $ / M tokens—$4.25
Results tracked1237

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Category by category

Coding Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 43.9 (#82), Muse Spark 1.3: 56.6 (#21)

Coding benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Coding14831514
CursorBench—41.6%
LMArena WebDev—1657
SciCode—59.7%

Agentic & Tool Use Not comparable

Amazon Nova Experimental Chat 26 02 10: —, Muse Spark 1.3: 38.6 (#30)

Agentic & Tool Use benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
APEX-Agents—57.8%
GDP.pdf—27.6%

Reasoning Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 30.1 (#86), Muse Spark 1.3: 54.0 (#27)

Reasoning benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Hard Prompts14581503
NYT Connections (extended)—85.1%
CritPt—26%
Chess Puzzles—38%
Mystery Game Puzzles—25%
DTBench—96.5%
LMCA—53.9%
Bench to the Future 3—0.14
Epoch Capabilities Index—156.75

Math Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 39.3 (#109), Muse Spark 1.3: 73.1 (#21)

Math benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Math14381494
FrontierMath (Tiers 1-3)—74.4%
FrontierMath Tier 4—46.3%
OTIS Mock AIME 2024-2025—99.2%
ProofBench—58%

Knowledge Too close to call

Amazon Nova Experimental Chat 26 02 10: 42.3 (#97), Muse Spark 1.3: 42.6 (#95)

Knowledge benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Expert15061516

Multimodal Not comparable

Amazon Nova Experimental Chat 26 02 10: —, Muse Spark 1.3: 43.7 (#22)

Multimodal benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Vision—1309
LMArena Document—1471

Multilingual Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 54.0 (#50), Muse Spark 1.3: 57.4 (#8)

Multilingual benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Non-English14341481
LMArena Chinese14631529
LMArena Russian14231490
LMArena French—1524
LMArena German—1515
LMArena Japanese—1474
LMArena Korean—1501
LMArena Spanish—1490

Instruction Following Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 75.2 (#69), Muse Spark 1.3: 77.5 (#22)

Instruction Following benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Instruction Following14271477

Long Context Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 44.0 (#77), Muse Spark 1.3: 45.6 (#32)

Long Context benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Longer Query14411488

Writing & Preference Muse Spark 1.3 leads

Amazon Nova Experimental Chat 26 02 10: 61.8 (#84), Muse Spark 1.3: 73.6 (#9)

Writing & Preference benchmarks
BenchmarkAmazon Nova Experimental Chat 26 02 10Muse Spark 1.3
LMArena Text14481490
LMArena Creative Writing13681455
LMArena Multi-Turn14421482
EQ-Bench Creative Writing—1906

Frequently asked questions

Is Amazon Nova Experimental Chat 26 02 10 better than Muse Spark 1.3?

Muse Spark 1.3 is the stronger model overall, scoring 54.8 to 44.5 on the Noometry Index.

Is Amazon Nova Experimental Chat 26 02 10 or Muse Spark 1.3 better for coding?

Muse Spark 1.3 scores higher on coding benchmarks: 56.6 versus 43.9 in the Noometry coding category.

How many benchmarks do Amazon Nova Experimental Chat 26 02 10 and Muse Spark 1.3 share?

12 benchmarks have published results for both models. Amazon Nova Experimental Chat 26 02 10 has 12 scored results on Noometry and Muse Spark 1.3 has 37.

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