Noometry

Model comparison

Claude Opus 4.1 vs Qwen2.5 Plus 1127

Claude Opus 4.1 is the stronger model overall, scoring 40.8 to 38.1 on the Noometry Index.

Last verified . 14 shared benchmarks.

Claude Opus 4.1 Anthropic

40.8

Rank #136 Confirmed

Qwen2.5 Plus 1127 Alibaba (Qwen)

38.1

Rank #179 Confirmed

Summary

  • They share 14 benchmarks with published results for both. Claude Opus 4.1 scores higher in 7 categories and Qwen2.5 Plus 1127 in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Claude Opus 4.1 leads 62.6 to 49.5.

Side by side

Claude Opus 4.1Qwen2.5 Plus 1127
ProviderAnthropicAlibaba (Qwen)
Noometry Index40.838.1
Released2025-08-05—
WeightsProprietaryProprietary
Context window200K—
Max output32K—
Input $ / M tokens$15—
Output $ / M tokens$75—
Results tracked4814

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Category by category

Coding Claude Opus 4.1 leads

Claude Opus 4.1: 44.3 (#69), Qwen2.5 Plus 1127: 37.9 (#171)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Coding14791314
SWE-bench Verified73.3%—
LMArena WebDev1390—
WeirdML45.9%—
ALE-Bench674.77—
AlgoTune1.34—

Agentic & Tool Use Not comparable

Claude Opus 4.1: 34.8 (#38), Qwen2.5 Plus 1127: —

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
Terminal-Bench38%—
GDPval43.6%—
Cybench42%—
DeepResearch Bench48.3%—
LMArena Search1148—
METR Time Horizons66.8%—

Reasoning Claude Opus 4.1 leads

Claude Opus 4.1: 31.6 (#70), Qwen2.5 Plus 1127: 24.8 (#139)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Hard Prompts14431299
SimpleBench60%—
Chess Puzzles7%—
EnigmaEval7.2%—
EBR-Bench7.9%—
Mystery Game Puzzles21%—
DTBench80%—
LMCA37.1%—
Epoch Capabilities Index144.11—
ForecastBench62—

Math Qwen2.5 Plus 1127 leads

Claude Opus 4.1: 22.0 (#267), Qwen2.5 Plus 1127: 33.5 (#175)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Math14301298
FrontierMath (Tiers 1-3)12.6%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202568.9%—
FrontierMath (Feb 2025 set)7.2%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Claude Opus 4.1 leads

Claude Opus 4.1: 41.9 (#93), Qwen2.5 Plus 1127: 34.9 (#179)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Expert14391289
GPQA Diamond77.3%—
Humanity's Last Exam11.5%—
Confabulations17.1%—
Vectara Hallucination Rate11.8%—

Multimodal Not comparable

Claude Opus 4.1: 26.2 (#114), Qwen2.5 Plus 1127: —

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
VPCT35%—

Multilingual Claude Opus 4.1 leads

Claude Opus 4.1: 52.1 (#90), Qwen2.5 Plus 1127: 42.1 (#196)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Non-English14051265
LMArena Chinese14271314
LMArena German14121231
LMArena Japanese13781207
LMArena Russian14211271
LMArena French1432—
LMArena Korean1381—
LMArena Spanish1448—

Instruction Following Claude Opus 4.1 leads

Claude Opus 4.1: 75.8 (#53), Qwen2.5 Plus 1127: 67.4 (#194)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Instruction Following14361275

Long Context Claude Opus 4.1 leads

Claude Opus 4.1: 44.5 (#60), Qwen2.5 Plus 1127: 39.2 (#180)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Longer Query14551292

Writing & Preference Claude Opus 4.1 leads

Claude Opus 4.1: 62.6 (#70), Qwen2.5 Plus 1127: 49.5 (#186)

BenchmarkClaude Opus 4.1Qwen2.5 Plus 1127
LMArena Text14191299
LMArena Creative Writing14121262
LMArena Multi-Turn14441299
Short-Story Creative Writing84.7%—

Frequently asked questions

Is Claude Opus 4.1 better than Qwen2.5 Plus 1127?

Claude Opus 4.1 is the stronger model overall, scoring 40.8 to 38.1 on the Noometry Index.

Is Claude Opus 4.1 or Qwen2.5 Plus 1127 better for coding?

Claude Opus 4.1 scores higher on coding benchmarks: 44.3 versus 37.9 in the Noometry coding category.

How many benchmarks do Claude Opus 4.1 and Qwen2.5 Plus 1127 share?

14 benchmarks have published results for both models. Claude Opus 4.1 has 48 scored results on Noometry and Qwen2.5 Plus 1127 has 14.

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