Noometry

Model comparison

Claude Sonnet 5 vs Qwen3-4B

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 31.9 on the Noometry Index.

Last verified . 3 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Qwen3-4B Alibaba (Qwen)

31.9

Rank #264 Confirmed

Summary

  • They share 3 benchmarks with published results for both. Claude Sonnet 5 scores higher in 4 categories and Qwen3-4B in 0 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 29.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 94.7% for Claude Sonnet 5 and 52.2% for Qwen3-4B.
  • Qwen3-4B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Qwen3-4B
ProviderAnthropicAlibaba (Qwen)
Noometry Index54.631.9
Released2026-06-292025-04-29
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked516

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Category by category

Coding Not comparable

Claude Sonnet 5: 55.5 (#26), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1541—
SciCode54.3%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Claude Sonnet 5 leads

Claude Sonnet 5: 42.8 (#18), Qwen3-4B: 27.6 (#100)

BenchmarkClaude Sonnet 5Qwen3-4B
APEX-Agents54.5%—
Berkeley Function Calling Leaderboard—35.7%
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 49.1 (#39), Qwen3-4B: 19.2 (#268)

BenchmarkClaude Sonnet 5Qwen3-4B
Chess Puzzles35%4%
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
LMArena Hard Prompts1461—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
Epoch Capabilities Index156.21—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.2 (#27), Qwen3-4B: 29.7 (#240)

BenchmarkClaude Sonnet 5Qwen3-4B
OTIS Mock AIME 2024-202594.7%52.2%
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
MathArena Final-Answer Competitions—38.5%
ProofBench77%—
LMArena Math1467—

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.6 (#47), Qwen3-4B: 33.0 (#208)

BenchmarkClaude Sonnet 5Qwen3-4B
GPQA Diamond90.5%52.3%
SimpleQA Verified33.7%—
Vectara Hallucination Rate—5.7%
LMArena Expert1490—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
LMArena Non-English1431—
LMArena Chinese1477—
LMArena French1460—
LMArena German1440—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1451—
LMArena Spanish1437—

Instruction Following Not comparable

Claude Sonnet 5: 76.3 (#41), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
LMArena Longer Query1463—

Writing & Preference Not comparable

Claude Sonnet 5: 69.2 (#25), Qwen3-4B: —

BenchmarkClaude Sonnet 5Qwen3-4B
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench Creative Writing1794—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Qwen3-4B?

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 31.9 on the Noometry Index.

How many benchmarks do Claude Sonnet 5 and Qwen3-4B share?

3 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Qwen3-4B has 6.

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