Kimi K2 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 23 (42 point difference).Qwen3.5 397B wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B

Kimi K2

29.8

Qwen3.5 397B

80.8

32
MMLU
83
31
GPQA
82
29
SuperGPQA
80
27
OpenBookQA
78

Coding

Qwen3.5 397B

Kimi K2

24

Qwen3.5 397B

75

24
HumanEval
75

Mathematics

Qwen3.5 397B

Kimi K2

31

Qwen3.5 397B

82

32
AIME 2023
83
34
AIME 2024
85
33
AIME 2025
84
28
HMMT Feb 2023
79
30
HMMT Feb 2024
81
29
HMMT Feb 2025
80
31
BRUMO 2025
82

Reasoning

Qwen3.5 397B

Kimi K2

29

Qwen3.5 397B

79

30
SimpleQA
80
28
MuSR
78

Frequently Asked Questions

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

Qwen3.5 397B scores higher overall with 65 vs 23, a difference of 42 points across all benchmarks.

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

Qwen3.5 397B leads in knowledge tasks with an average score of 80.8 vs 29.8.

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

Qwen3.5 397B leads in coding with an average score of 75 vs 24.

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

Qwen3.5 397B leads in math with an average score of 82 vs 31.

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

Qwen3.5 397B leads in reasoning with an average score of 79 vs 29.