benchlm.ai

Grok Code Fast 1 vs Kimi K2.5 (Reasoning)

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

Quick Verdict

Kimi K2.5 (Reasoning) wins overall with a score of 71 vs 54 (17 point difference).Kimi K2.5 (Reasoning) wins 4 out of 4 categories.

Grok Code Fast 1

CreatorxAI
TypeProprietary
Context256K
Score54

Kimi K2.5 (Reasoning)

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score71

Knowledge

Kimi K2.5 (Reasoning)

Grok Code Fast 1

61.8

Kimi K2.5 (Reasoning)

89

64
MMLU
92
63
GPQA
90
61
SuperGPQA
88
59
OpenBookQA
86

Coding

Kimi K2.5 (Reasoning)

Grok Code Fast 1

60

Kimi K2.5 (Reasoning)

84

60
HumanEval
84

Mathematics

Kimi K2.5 (Reasoning)

Grok Code Fast 1

63

Kimi K2.5 (Reasoning)

93

64
AIME 2023
94
66
AIME 2024
96
65
AIME 2025
95
60
HMMT Feb 2023
90
62
HMMT Feb 2024
92
61
HMMT Feb 2025
91
63
BRUMO 2025
93

Reasoning

Kimi K2.5 (Reasoning)

Grok Code Fast 1

60

Kimi K2.5 (Reasoning)

87

61
SimpleQA
88
59
MuSR
86

Frequently Asked Questions

Which is better, Grok Code Fast 1 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) scores higher overall with 71 vs 54, a difference of 17 points across all benchmarks.

Which is better for knowledge tasks, Grok Code Fast 1 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in knowledge tasks with an average score of 89 vs 61.8.

Which is better for coding, Grok Code Fast 1 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in coding with an average score of 84 vs 60.

Which is better for math, Grok Code Fast 1 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in math with an average score of 93 vs 63.

Which is better for reasoning, Grok Code Fast 1 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in reasoning with an average score of 87 vs 60.

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