Noometry

Model comparison

Claude Sonnet 5 vs Granite 4.2 3b

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 39.0 on the Noometry Index.

Last verified . 11 shared benchmarks.

Claude Sonnet 5 Anthropic

54.5

Rank #26 Confirmed

Granite 4.2 3b IBM

39.0

Rank #163 Confirmed

Summary

  • They share 11 benchmarks with published results for both. Claude Sonnet 5 scores higher in 7 categories and Granite 4.2 3b in 0 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Sonnet 5 leads 48.2 to 25.0.
  • Granite 4.2 3b has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Granite 4.2 3b
ProviderAnthropicIBM
Noometry Index54.539.0
Released2026-06-29—
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked5111

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Category by category

Coding Claude Sonnet 5 leads

Claude Sonnet 5: 55.5 (#20), Granite 4.2 3b: 39.4 (#146)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Coding14831363
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1540—
SciCode53.6%—
GSO37.3%—
WeirdML68.8%—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.7 (#16), Granite 4.2 3b: —

BenchmarkClaude Sonnet 5Granite 4.2 3b
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 48.2 (#37), Granite 4.2 3b: 25.0 (#136)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Hard Prompts14611308
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 Not comparable

Claude Sonnet 5: 66.1 (#21), Granite 4.2 3b: —

BenchmarkClaude Sonnet 5Granite 4.2 3b
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
ProofBench77%—
LMArena Math1467—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.7 (#42), Granite 4.2 3b: 35.6 (#169)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Expert14911313
GPQA Diamond90.5%—
SimpleQA Verified33.7%—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#26), Granite 4.2 3b: —

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Vision1275—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Claude Sonnet 5 leads

Claude Sonnet 5: 54.0 (#55), Granite 4.2 3b: 42.4 (#193)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Non-English14311268
LMArena Chinese14751268
LMArena Russian14521249
LMArena French1457—
LMArena German1448—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Spanish1436—

Instruction Following Claude Sonnet 5 leads

Claude Sonnet 5: 76.6 (#39), Granite 4.2 3b: 67.2 (#195)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Instruction Following14531271

Long Context Claude Sonnet 5 leads

Claude Sonnet 5: 44.8 (#53), Granite 4.2 3b: 39.3 (#179)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Longer Query14641293

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.4 (#24), Granite 4.2 3b: 47.9 (#202)

BenchmarkClaude Sonnet 5Granite 4.2 3b
LMArena Text14431295
LMArena Creative Writing14161215
LMArena Multi-Turn14541293
EQ-Bench Creative Writing1794—
EQ-Bench 41236—

Frequently asked questions

Is Claude Sonnet 5 better than Granite 4.2 3b?

Claude Sonnet 5 is the stronger model overall, scoring 54.5 to 39.0 on the Noometry Index.

Is Claude Sonnet 5 or Granite 4.2 3b better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 39.4 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5 and Granite 4.2 3b share?

11 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Granite 4.2 3b has 11.

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