Kimi K2 vs Llama 3.1 405B

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

Quick Verdict

Llama 3.1 405B wins overall with a score of 58 vs 23 (35 point difference).Llama 3.1 405B wins 4 out of 4 categories.

Knowledge

Llama 3.1 405B

Kimi K2

29.8

Llama 3.1 405B

68.5

32
MMLU
70
31
GPQA
70
29
SuperGPQA
68
27
OpenBookQA
66

Coding

Llama 3.1 405B

Kimi K2

24

Llama 3.1 405B

62

24
HumanEval
62

Mathematics

Llama 3.1 405B

Kimi K2

31

Llama 3.1 405B

69

32
AIME 2023
70
34
AIME 2024
72
33
AIME 2025
71
28
HMMT Feb 2023
66
30
HMMT Feb 2024
68
29
HMMT Feb 2025
67
31
BRUMO 2025
69

Reasoning

Llama 3.1 405B

Kimi K2

29

Llama 3.1 405B

67

30
SimpleQA
68
28
MuSR
66

Frequently Asked Questions

Which is better, Kimi K2 or Llama 3.1 405B?

Llama 3.1 405B scores higher overall with 58 vs 23, a difference of 35 points across all benchmarks.

Which is better for knowledge tasks, Kimi K2 or Llama 3.1 405B?

Llama 3.1 405B leads in knowledge tasks with an average score of 68.5 vs 29.8.

Which is better for coding, Kimi K2 or Llama 3.1 405B?

Llama 3.1 405B leads in coding with an average score of 62 vs 24.

Which is better for math, Kimi K2 or Llama 3.1 405B?

Llama 3.1 405B leads in math with an average score of 69 vs 31.

Which is better for reasoning, Kimi K2 or Llama 3.1 405B?

Llama 3.1 405B leads in reasoning with an average score of 67 vs 29.