Noometry

Model comparison

Claude 3 Sonnet vs Qwen3.5 Plus

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 29.0 on the Noometry Index.

Last verified . 4 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

Qwen3.5 Plus Alibaba (Qwen)

42.9

Rank #106 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3.5 Plus leads 49.6 to 10.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 86.7% for Qwen3.5 Plus.

Side by side

Claude 3 SonnetQwen3.5 Plus
ProviderAnthropicAlibaba (Qwen)
Noometry Index29.042.9
Released2024-02-292026-02-16
WeightsProprietaryProprietary
Context window—1M
Max output—66K
Input $ / M tokens—$0.40
Output $ / M tokens—$2.40
Results tracked3015

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Category by category

Coding Not comparable

Claude 3 Sonnet: 29.6 (#302), Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
WeirdML10.2%—
BigCodeBench Instruct42.7%—
LMArena Coding1223—
BigCodeBench Complete53.8%—
ALE-Bench—621.92
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
Vending-Bench 2—0.54

Reasoning Qwen3.5 Plus leads

Claude 3 Sonnet: 20.5 (#237), Qwen3.5 Plus: 32.8 (#74)

BenchmarkClaude 3 SonnetQwen3.5 Plus
DTBench53.6%80.5%
Epoch Capabilities Index120.7146.78
Chess Puzzles—22%
LMArena Hard Prompts1197—
Mystery Game Puzzles—17%
LMCA—36.4%
WinoGrande75.1%—

Math Qwen3.5 Plus leads

Claude 3 Sonnet: 10.7 (#310), Qwen3.5 Plus: 49.6 (#61)

BenchmarkClaude 3 SonnetQwen3.5 Plus
OTIS Mock AIME 2024-20252.5%86.7%
LMArena Math1213—
MATH Level 518.2%—
FrontierMath (Feb 2025 set)—21%
FrontierMath Tier 4 (v1)—2.1%

Knowledge Qwen3.5 Plus leads

Claude 3 Sonnet: 21.1 (#276), Qwen3.5 Plus: 46.0 (#83)

BenchmarkClaude 3 SonnetQwen3.5 Plus
GPQA Diamond40.6%84.8%
SimpleQA Verified—25.4%
Vectara Hallucination Rate—10.7%
LMArena Expert1173—
MMLU75.9%—

Multimodal Not comparable

Claude 3 Sonnet: 25.2 (#125), Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
LMArena Vision984—

Multilingual Not comparable

Claude 3 Sonnet: 37.8 (#234), Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
LMArena Non-English1205—
LMArena Chinese1189—
LMArena French1229—
LMArena German1204—
LMArena Japanese1131—
LMArena Korean1128—
LMArena Russian1227—
LMArena Spanish1204—

Instruction Following Not comparable

Claude 3 Sonnet: 62.8 (#235), Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
LMArena Instruction Following1199—

Long Context Qwen3.5 Plus leads

Claude 3 Sonnet: 36.7 (#228), Qwen3.5 Plus: 43.0 (#113)

BenchmarkClaude 3 SonnetQwen3.5 Plus
CL-bench—19.8%
CL-bench Life—12.4%
LMArena Longer Query1211—

Writing & Preference Not comparable

Claude 3 Sonnet: 42.1 (#238), Qwen3.5 Plus: —

BenchmarkClaude 3 SonnetQwen3.5 Plus
LMArena Text1218—
LMArena Creative Writing1186—
LMArena Multi-Turn1227—

Frequently asked questions

Is Claude 3 Sonnet better than Qwen3.5 Plus?

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 29.0 on the Noometry Index.

How many benchmarks do Claude 3 Sonnet and Qwen3.5 Plus share?

4 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Qwen3.5 Plus has 15.

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