benchlm.ai

Claude 3.5 Sonnet 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 55 (7 point difference).Kimi K2.5 wins 4 out of 4 categories.

Claude 3.5 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score55

Kimi K2.5

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score62

Knowledge

Kimi K2.5

Claude 3.5 Sonnet

63.5

Kimi K2.5

74.8

65
MMLU
77
65
GPQA
76
63
SuperGPQA
74
61
OpenBookQA
72

Coding

Kimi K2.5

Claude 3.5 Sonnet

57

Kimi K2.5

69

57
HumanEval
69

Mathematics

Kimi K2.5

Claude 3.5 Sonnet

64

Kimi K2.5

76

65
AIME 2023
77
67
AIME 2024
79
66
AIME 2025
78
61
HMMT Feb 2023
73
63
HMMT Feb 2024
75
62
HMMT Feb 2025
74
64
BRUMO 2025
76

Reasoning

Kimi K2.5

Claude 3.5 Sonnet

62

Kimi K2.5

73

63
SimpleQA
74
61
MuSR
72

Frequently Asked Questions

Which is better, Claude 3.5 Sonnet or Kimi K2.5?

Kimi K2.5 scores higher overall with 62 vs 55, a difference of 7 points across all benchmarks.

Which is better for knowledge tasks, Claude 3.5 Sonnet or Kimi K2.5?

Kimi K2.5 leads in knowledge tasks with an average score of 74.8 vs 63.5.

Which is better for coding, Claude 3.5 Sonnet or Kimi K2.5?

Kimi K2.5 leads in coding with an average score of 69 vs 57.

Which is better for math, Claude 3.5 Sonnet or Kimi K2.5?

Kimi K2.5 leads in math with an average score of 76 vs 64.

Which is better for reasoning, Claude 3.5 Sonnet or Kimi K2.5?

Kimi K2.5 leads in reasoning with an average score of 73 vs 62.

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