Grok 4 vs Kimi K2.5

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

Quick Verdict

Grok 4 wins overall with a score of 69 vs 62 (7 point difference).Grok 4 wins 4 out of 4 categories.

Knowledge

Grok 4

Grok 4

84.8

Kimi K2.5

74.8

87
MMLU
77
86
GPQA
76
84
SuperGPQA
74
82
OpenBookQA
72

Coding

Grok 4

Grok 4

79

Kimi K2.5

69

79
HumanEval
69

Mathematics

Grok 4

Grok 4

86.6

Kimi K2.5

76

87
AIME 2023
77
89
AIME 2024
79
88
AIME 2025
78
84
HMMT Feb 2023
73
86
HMMT Feb 2024
75
85
HMMT Feb 2025
74
87
BRUMO 2025
76

Reasoning

Grok 4

Grok 4

82

Kimi K2.5

73

83
SimpleQA
74
81
MuSR
72

Frequently Asked Questions

Which is better, Grok 4 or Kimi K2.5?

Grok 4 scores higher overall with 69 vs 62, a difference of 7 points across all benchmarks.

Which is better for knowledge tasks, Grok 4 or Kimi K2.5?

Grok 4 leads in knowledge tasks with an average score of 84.8 vs 74.8.

Which is better for coding, Grok 4 or Kimi K2.5?

Grok 4 leads in coding with an average score of 79 vs 69.

Which is better for math, Grok 4 or Kimi K2.5?

Grok 4 leads in math with an average score of 86.6 vs 76.

Which is better for reasoning, Grok 4 or Kimi K2.5?

Grok 4 leads in reasoning with an average score of 82 vs 73.