benchlm.ai

Claude 4.1 Opus Thinking vs Qwen3.5 397B

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

Qwen3.5 397B wins overall with a score of 65 vs 29 (36 point difference).Qwen3.5 397B wins 4 out of 4 categories.

Claude 4.1 Opus Thinking

CreatorAnthropic
TypeProprietary
Context200K
Score29

Qwen3.5 397B

CreatorAlibaba
TypeOpen Weight
Context128K
Score65

Knowledge

Qwen3.5 397B

Claude 4.1 Opus Thinking

35.8

Qwen3.5 397B

80.8

38
MMLU
83
37
GPQA
82
35
SuperGPQA
80
33
OpenBookQA
78

Coding

Qwen3.5 397B

Claude 4.1 Opus Thinking

30

Qwen3.5 397B

75

30
HumanEval
75

Mathematics

Qwen3.5 397B

Claude 4.1 Opus Thinking

37

Qwen3.5 397B

82

38
AIME 2023
83
40
AIME 2024
85
39
AIME 2025
84
34
HMMT Feb 2023
79
36
HMMT Feb 2024
81
35
HMMT Feb 2025
80
37
BRUMO 2025
82

Reasoning

Qwen3.5 397B

Claude 4.1 Opus Thinking

35

Qwen3.5 397B

79

36
SimpleQA
80
34
MuSR
78

Frequently Asked Questions

Which is better, Claude 4.1 Opus Thinking or Qwen3.5 397B?

Qwen3.5 397B scores higher overall with 65 vs 29, a difference of 36 points across all benchmarks.

Which is better for knowledge tasks, Claude 4.1 Opus Thinking or Qwen3.5 397B?

Qwen3.5 397B leads in knowledge tasks with an average score of 80.8 vs 35.8.

Which is better for coding, Claude 4.1 Opus Thinking or Qwen3.5 397B?

Qwen3.5 397B leads in coding with an average score of 75 vs 30.

Which is better for math, Claude 4.1 Opus Thinking or Qwen3.5 397B?

Qwen3.5 397B leads in math with an average score of 82 vs 37.

Which is better for reasoning, Claude 4.1 Opus Thinking or Qwen3.5 397B?

Qwen3.5 397B leads in reasoning with an average score of 79 vs 35.

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