Noometry

Model comparison

Claude Sonnet 5.5 vs Qwen3-4B

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.9 on the Noometry Index.

Last verified . 2 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Qwen3-4B Alibaba (Qwen)

31.9

Rank #264 Confirmed

Summary

  • They share 2 benchmarks with published results for both. Claude Sonnet 5.5 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 5.5 leads 87.9 to 29.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Sonnet 5.5 and 52.2% for Qwen3-4B.
  • Qwen3-4B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Qwen3-4B
ProviderAnthropicAlibaba (Qwen)
Noometry Index61.931.9
Released2026-09-282025-04-29
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked326

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Category by category

Coding Not comparable

Claude Sonnet 5.5: 67.3 (#6), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
LMArena Coding1513—
ALE-Bench1,819—

Agentic & Tool Use Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.0 (#16), Qwen3-4B: 27.6 (#100)

BenchmarkClaude Sonnet 5.5Qwen3-4B
APEX-Agents75.5%—
Berkeley Function Calling Leaderboard—35.7%

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Qwen3-4B: 19.2 (#268)

BenchmarkClaude Sonnet 5.5Qwen3-4B
NYT Connections (extended)80.5%—
CritPt31.4%—
Chess Puzzles—4%
LMArena Hard Prompts1495—
Mystery Game Puzzles65%—
Epoch Capabilities Index165.03—

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Qwen3-4B: 29.7 (#240)

BenchmarkClaude Sonnet 5.5Qwen3-4B
OTIS Mock AIME 2024-2025100%52.2%
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
MathArena Final-Answer Competitions—38.5%
ProofBench100%—
LMArena Math1510—
FrontierMath Erdős2.9%—

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Qwen3-4B: 33.0 (#208)

BenchmarkClaude Sonnet 5.5Qwen3-4B
GPQA Diamond95.6%52.3%
SimpleQA Verified46.5%—
Vectara Hallucination Rate—5.7%
LMArena Expert1540—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Not comparable

Claude Sonnet 5.5: 55.3 (#30), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
LMArena Non-English1452—
LMArena Chinese1522—
LMArena Russian1451—

Instruction Following Not comparable

Claude Sonnet 5.5: 78.3 (#11), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
LMArena Instruction Following1495—

Long Context Not comparable

Claude Sonnet 5.5: 45.9 (#28), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
LMArena Longer Query1498—

Writing & Preference Not comparable

Claude Sonnet 5.5: 66.0 (#40), Qwen3-4B: —

BenchmarkClaude Sonnet 5.5Qwen3-4B
LMArena Text1471—
LMArena Creative Writing1465—
LMArena Multi-Turn1474—

Frequently asked questions

Is Claude Sonnet 5.5 better than Qwen3-4B?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 31.9 on the Noometry Index.

How many benchmarks do Claude Sonnet 5.5 and Qwen3-4B share?

2 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Qwen3-4B has 6.

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