benchlm.ai

Kimi K2 vs Kimi K2.5

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

Quick Verdict

Kimi K2.5 wins overall with a score of 62 vs 23 (39 point difference).Kimi K2.5 wins 4 out of 4 categories.

Kimi K2

CreatorMoonshot AI
TypeProprietary
Context128K
Score23

Kimi K2.5

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score62

Knowledge

Kimi K2.5

Kimi K2

29.8

Kimi K2.5

74.8

32
MMLU
77
31
GPQA
76
29
SuperGPQA
74
27
OpenBookQA
72

Coding

Kimi K2.5

Kimi K2

24

Kimi K2.5

69

24
HumanEval
69

Mathematics

Kimi K2.5

Kimi K2

31

Kimi K2.5

76

32
AIME 2023
77
34
AIME 2024
79
33
AIME 2025
78
28
HMMT Feb 2023
73
30
HMMT Feb 2024
75
29
HMMT Feb 2025
74
31
BRUMO 2025
76

Reasoning

Kimi K2.5

Kimi K2

29

Kimi K2.5

73

30
SimpleQA
74
28
MuSR
72

Frequently Asked Questions

Which is better, Kimi K2 or Kimi K2.5?

Kimi K2.5 scores higher overall with 62 vs 23, a difference of 39 points across all benchmarks.

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

Kimi K2.5 leads in knowledge tasks with an average score of 74.8 vs 29.8.

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

Kimi K2.5 leads in coding with an average score of 69 vs 24.

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

Kimi K2.5 leads in math with an average score of 76 vs 31.

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

Kimi K2.5 leads in reasoning with an average score of 73 vs 29.

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