Kimi K2 vs o3-pro

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

Quick Verdict

o3-pro wins overall with a score of 68 vs 23 (45 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

Kimi K2

29.8

o3-pro

87.3

32
MMLU
88
31
GPQA
89
29
SuperGPQA
87
27
OpenBookQA
85

Coding

o3-pro

Kimi K2

24

o3-pro

80

24
HumanEval
80

Mathematics

o3-pro

Kimi K2

31

o3-pro

89

32
AIME 2023
90
34
AIME 2024
92
33
AIME 2025
91
28
HMMT Feb 2023
86
30
HMMT Feb 2024
88
29
HMMT Feb 2025
87
31
BRUMO 2025
89

Reasoning

o3-pro

Kimi K2

29

o3-pro

85

30
SimpleQA
86
28
MuSR
84

Frequently Asked Questions

Which is better, Kimi K2 or o3-pro?

o3-pro scores higher overall with 68 vs 23, a difference of 45 points across all benchmarks.

Which is better for knowledge tasks, Kimi K2 or o3-pro?

o3-pro leads in knowledge tasks with an average score of 87.3 vs 29.8.

Which is better for coding, Kimi K2 or o3-pro?

o3-pro leads in coding with an average score of 80 vs 24.

Which is better for math, Kimi K2 or o3-pro?

o3-pro leads in math with an average score of 89 vs 31.

Which is better for reasoning, Kimi K2 or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 29.