Model comparison

Claude 2 vs Qwen3.5 27B

Qwen3.5 27B is the stronger model overall, scoring 41.9 to 25.0 on the Noometry Index.

Last verified . 1 shared benchmarks.

Claude 2 Anthropic

25.0

Rank #346 Reported

Qwen3.5 27B Alibaba (Qwen)

41.9

Rank #127 Confirmed

Summary

  • They share 1 benchmark with published results for both. Claude 2 scores higher in 0 categories and Qwen3.5 27B in 3 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3.5 27B leads 38.8 to 9.3.
  • The biggest single-benchmark swing is DTBench: 51.9% for Claude 2 and 82.4% for Qwen3.5 27B.
  • Qwen3.5 27B has downloadable open weights; the other is API-only.

Side by side

Claude 2 and Qwen3.5 27B specifications
Claude 2Qwen3.5 27B
ProviderAnthropicAlibaba (Qwen)
Noometry Index25.041.9
Released2023-07-112026-02-23
WeightsProprietaryOpen
Context window—262K
Max output—66K
Input $ / M tokens—$0.30
Output $ / M tokens—$2.40
Results tracked828

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Category by category

Coding Not comparable

Claude 2: —, Qwen3.5 27B: 38.9 (#168)

Coding benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena WebDev—1358
WeirdML—39.5%
LMArena Coding—1427
ALE-Bench—349.45
HumanEval+61.6%—

Agentic & Tool Use Not comparable

Claude 2: —, Qwen3.5 27B: —

Agentic & Tool Use benchmarks
BenchmarkClaude 2Qwen3.5 27B
Vending-Bench 2—201.98

Reasoning Qwen3.5 27B leads

Claude 2: 21.7 (#216), Qwen3.5 27B: 27.5 (#117)

Reasoning benchmarks
BenchmarkClaude 2Qwen3.5 27B
DTBench51.9%82.4%
NYT Connections (extended)—47.9%
Thematic Generalization—45.5%
LMArena Hard Prompts—1414
LMCA—34%
Epoch Capabilities Index120.13—

Math Qwen3.5 27B leads

Claude 2: 9.3 (#320), Qwen3.5 27B: 38.8 (#127)

Math benchmarks
BenchmarkClaude 2Qwen3.5 27B
MathArena Final-Answer Competitions—56.7%
OTIS Mock AIME 2024-20252.5%—
LMArena Math—1429
MATH Level 511.7%—

Knowledge Qwen3.5 27B leads

Claude 2: 16.9 (#287), Qwen3.5 27B: 38.0 (#150)

Knowledge benchmarks
BenchmarkClaude 2Qwen3.5 27B
GPQA Diamond34.7%—
Vectara Hallucination Rate—12.1%
LMArena Expert—1428
MMLU78.5%—
TriviaQA87.5%—

Multimodal Not comparable

Claude 2: —, Qwen3.5 27B: 39.4 (#59)

Multimodal benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena Vision—1241

Multilingual Not comparable

Claude 2: —, Qwen3.5 27B: 50.8 (#115)

Multilingual benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena Non-English—1390
LMArena Chinese—1478
LMArena French—1410
LMArena German—1393
LMArena Japanese—1345
LMArena Korean—1358
LMArena Russian—1390
LMArena Spanish—1407

Instruction Following Not comparable

Claude 2: —, Qwen3.5 27B: 73.5 (#119)

Instruction Following benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena Instruction Following—1393

Long Context Not comparable

Claude 2: —, Qwen3.5 27B: 43.1 (#106)

Long Context benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena Longer Query—1413

Writing & Preference Not comparable

Claude 2: —, Qwen3.5 27B: 59.3 (#111)

Writing & Preference benchmarks
BenchmarkClaude 2Qwen3.5 27B
LMArena Text—1409
LMArena Creative Writing—1362
LMArena Multi-Turn—1410

Frequently asked questions

Is Claude 2 better than Qwen3.5 27B?

Qwen3.5 27B is the stronger model overall, scoring 41.9 to 25.0 on the Noometry Index.

How many benchmarks do Claude 2 and Qwen3.5 27B share?

1 benchmark has published results for both models. Claude 2 has 8 scored results on Noometry and Qwen3.5 27B has 28.

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