Claude 4 Sonnet 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 59 (6 point difference).Qwen3.5 397B wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B

Claude 4 Sonnet

71.5

Qwen3.5 397B

80.8

73
MMLU
83
73
GPQA
82
71
SuperGPQA
80
69
OpenBookQA
78

Coding

Qwen3.5 397B

Claude 4 Sonnet

65

Qwen3.5 397B

75

65
HumanEval
75

Mathematics

Qwen3.5 397B

Claude 4 Sonnet

72

Qwen3.5 397B

82

73
AIME 2023
83
75
AIME 2024
85
74
AIME 2025
84
69
HMMT Feb 2023
79
71
HMMT Feb 2024
81
70
HMMT Feb 2025
80
72
BRUMO 2025
82

Reasoning

Qwen3.5 397B

Claude 4 Sonnet

70

Qwen3.5 397B

79

71
SimpleQA
80
69
MuSR
78

Frequently Asked Questions

Which is better, Claude 4 Sonnet or Qwen3.5 397B?

Qwen3.5 397B scores higher overall with 65 vs 59, a difference of 6 points across all benchmarks.

Which is better for knowledge tasks, Claude 4 Sonnet or Qwen3.5 397B?

Qwen3.5 397B leads in knowledge tasks with an average score of 80.8 vs 71.5.

Which is better for coding, Claude 4 Sonnet or Qwen3.5 397B?

Qwen3.5 397B leads in coding with an average score of 75 vs 65.

Which is better for math, Claude 4 Sonnet or Qwen3.5 397B?

Qwen3.5 397B leads in math with an average score of 82 vs 72.

Which is better for reasoning, Claude 4 Sonnet or Qwen3.5 397B?

Qwen3.5 397B leads in reasoning with an average score of 79 vs 70.