Kimi K2.5 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 62 (6 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

Kimi K2.5

74.8

o3-pro

87.3

77
MMLU
88
76
GPQA
89
74
SuperGPQA
87
72
OpenBookQA
85

Coding

o3-pro

Kimi K2.5

69

o3-pro

80

69
HumanEval
80

Mathematics

o3-pro

Kimi K2.5

76

o3-pro

89

77
AIME 2023
90
79
AIME 2024
92
78
AIME 2025
91
73
HMMT Feb 2023
86
75
HMMT Feb 2024
88
74
HMMT Feb 2025
87
76
BRUMO 2025
89

Reasoning

o3-pro

Kimi K2.5

73

o3-pro

85

74
SimpleQA
86
72
MuSR
84

Frequently Asked Questions

Which is better, Kimi K2.5 or o3-pro?

o3-pro scores higher overall with 68 vs 62, a difference of 6 points across all benchmarks.

Which is better for knowledge tasks, Kimi K2.5 or o3-pro?

o3-pro leads in knowledge tasks with an average score of 87.3 vs 74.8.

Which is better for coding, Kimi K2.5 or o3-pro?

o3-pro leads in coding with an average score of 80 vs 69.

Which is better for math, Kimi K2.5 or o3-pro?

o3-pro leads in math with an average score of 89 vs 76.

Which is better for reasoning, Kimi K2.5 or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 73.