Kimi K2 vs Qwen3.5 397B (Reasoning)

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

Quick Verdict

Qwen3.5 397B (Reasoning) wins overall with a score of 70 vs 23 (47 point difference).Qwen3.5 397B (Reasoning) wins 4 out of 4 categories.

Knowledge

Qwen3.5 397B (Reasoning)

Kimi K2

29.8

Qwen3.5 397B (Reasoning)

88

32
MMLU
91
31
GPQA
89
29
SuperGPQA
87
27
OpenBookQA
85

Coding

Qwen3.5 397B (Reasoning)

Kimi K2

24

Qwen3.5 397B (Reasoning)

83

24
HumanEval
83

Mathematics

Qwen3.5 397B (Reasoning)

Kimi K2

31

Qwen3.5 397B (Reasoning)

92

32
AIME 2023
93
34
AIME 2024
95
33
AIME 2025
94
28
HMMT Feb 2023
89
30
HMMT Feb 2024
91
29
HMMT Feb 2025
90
31
BRUMO 2025
92

Reasoning

Qwen3.5 397B (Reasoning)

Kimi K2

29

Qwen3.5 397B (Reasoning)

86

30
SimpleQA
87
28
MuSR
85

Frequently Asked Questions

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

Qwen3.5 397B (Reasoning) scores higher overall with 70 vs 23, a difference of 47 points across all benchmarks.

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

Qwen3.5 397B (Reasoning) leads in knowledge tasks with an average score of 88 vs 29.8.

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

Qwen3.5 397B (Reasoning) leads in coding with an average score of 83 vs 24.

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

Qwen3.5 397B (Reasoning) leads in math with an average score of 92 vs 31.

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

Qwen3.5 397B (Reasoning) leads in reasoning with an average score of 86 vs 29.