Noometry

Model comparison

Claude Sonnet 5 vs Muse Glimmer

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 41.3 on the Noometry Index.

Last verified . 13 shared benchmarks.

Claude Sonnet 5 Anthropic

54.5

Rank #26 Confirmed

Muse Glimmer Meta

41.3

Rank #128 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Claude Sonnet 5 scores higher in 8 categories and Muse Glimmer in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5 leads 66.1 to 36.1.
  • Muse Glimmer has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Muse Glimmer
ProviderAnthropicMeta
Noometry Index54.541.3
Released2026-06-29—
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked5113

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Category by category

Coding Claude Sonnet 5 leads

Claude Sonnet 5: 55.5 (#20), Muse Glimmer: 38.7 (#157)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena WebDev15401355
LMArena Coding14831417
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
SciCode53.6%—
GSO37.3%—
WeirdML68.8%—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.7 (#16), Muse Glimmer: —

BenchmarkClaude Sonnet 5Muse Glimmer
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 48.2 (#37), Muse Glimmer: 27.2 (#111)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Hard Prompts14611395
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
Chess Puzzles35%—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
Epoch Capabilities Index156.34—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.1 (#21), Muse Glimmer: 36.1 (#128)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Math14671419
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
ProofBench77%—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.7 (#42), Muse Glimmer: 37.9 (#140)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Expert14911388
GPQA Diamond90.5%—
SimpleQA Verified33.7%—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#26), Muse Glimmer: —

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Vision1275—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Claude Sonnet 5 leads

Claude Sonnet 5: 54.0 (#55), Muse Glimmer: 50.6 (#117)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Non-English14311384
LMArena Chinese14751412
LMArena Russian14521393
LMArena French1457—
LMArena German1448—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Spanish1436—

Instruction Following Claude Sonnet 5 leads

Claude Sonnet 5: 76.6 (#39), Muse Glimmer: 72.7 (#134)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Instruction Following14531374

Long Context Claude Sonnet 5 leads

Claude Sonnet 5: 44.8 (#53), Muse Glimmer: 42.1 (#124)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Longer Query14641381

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.4 (#24), Muse Glimmer: 57.7 (#122)

BenchmarkClaude Sonnet 5Muse Glimmer
LMArena Text14431389
LMArena Creative Writing14161338
LMArena Multi-Turn14541398
EQ-Bench Creative Writing1794—
EQ-Bench 41236—

Frequently asked questions

Is Claude Sonnet 5 better than Muse Glimmer?

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 41.3 on the Noometry Index.

Is Claude Sonnet 5 or Muse Glimmer better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 38.7 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5 and Muse Glimmer share?

13 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Muse Glimmer has 13.

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