Kimi K2.5 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 62 (3 point difference).Qwen3.5 397B wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B

Kimi K2.5

74.8

Qwen3.5 397B

80.8

77
MMLU
83
76
GPQA
82
74
SuperGPQA
80
72
OpenBookQA
78

Coding

Qwen3.5 397B

Kimi K2.5

69

Qwen3.5 397B

75

69
HumanEval
75

Mathematics

Qwen3.5 397B

Kimi K2.5

76

Qwen3.5 397B

82

77
AIME 2023
83
79
AIME 2024
85
78
AIME 2025
84
73
HMMT Feb 2023
79
75
HMMT Feb 2024
81
74
HMMT Feb 2025
80
76
BRUMO 2025
82

Reasoning

Qwen3.5 397B

Kimi K2.5

73

Qwen3.5 397B

79

74
SimpleQA
80
72
MuSR
78

Frequently Asked Questions

Which is better, Kimi K2.5 or Qwen3.5 397B?

Qwen3.5 397B scores higher overall with 65 vs 62, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, Kimi K2.5 or Qwen3.5 397B?

Qwen3.5 397B leads in knowledge tasks with an average score of 80.8 vs 74.8.

Which is better for coding, Kimi K2.5 or Qwen3.5 397B?

Qwen3.5 397B leads in coding with an average score of 75 vs 69.

Which is better for math, Kimi K2.5 or Qwen3.5 397B?

Qwen3.5 397B leads in math with an average score of 82 vs 76.

Which is better for reasoning, Kimi K2.5 or Qwen3.5 397B?

Qwen3.5 397B leads in reasoning with an average score of 79 vs 73.