benchlm.ai

Claude Sonnet 4.6 vs Kimi K2.5

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

Quick Verdict

Claude Sonnet 4.6 wins overall with a score of 80 vs 62 (18 point difference).Claude Sonnet 4.6 wins 4 out of 4 categories.

Claude Sonnet 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score80

Kimi K2.5

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score62

Knowledge

Claude Sonnet 4.6

Claude Sonnet 4.6

96

Kimi K2.5

74.8

99
MMLU
77
97
GPQA
76
95
SuperGPQA
74
93
OpenBookQA
72

Coding

Claude Sonnet 4.6

Claude Sonnet 4.6

93

Kimi K2.5

69

93
HumanEval
69

Mathematics

Claude Sonnet 4.6

Claude Sonnet 4.6

97.1

Kimi K2.5

76

99
AIME 2023
77
99
AIME 2024
79
98
AIME 2025
78
95
HMMT Feb 2023
73
97
HMMT Feb 2024
75
96
HMMT Feb 2025
74
96
BRUMO 2025
76

Reasoning

Claude Sonnet 4.6

Claude Sonnet 4.6

94

Kimi K2.5

73

95
SimpleQA
74
93
MuSR
72

Frequently Asked Questions

Which is better, Claude Sonnet 4.6 or Kimi K2.5?

Claude Sonnet 4.6 scores higher overall with 80 vs 62, a difference of 18 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.6 or Kimi K2.5?

Claude Sonnet 4.6 leads in knowledge tasks with an average score of 96 vs 74.8.

Which is better for coding, Claude Sonnet 4.6 or Kimi K2.5?

Claude Sonnet 4.6 leads in coding with an average score of 93 vs 69.

Which is better for math, Claude Sonnet 4.6 or Kimi K2.5?

Claude Sonnet 4.6 leads in math with an average score of 97.1 vs 76.

Which is better for reasoning, Claude Sonnet 4.6 or Kimi K2.5?

Claude Sonnet 4.6 leads in reasoning with an average score of 94 vs 73.

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