benchlm.ai

Claude Sonnet 4.6 vs Kimi K2

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 23 (57 point difference).Claude Sonnet 4.6 wins 4 out of 4 categories.

Claude Sonnet 4.6

CreatorAnthropic
TypeProprietary
Context1M
Score80

Kimi K2

CreatorMoonshot AI
TypeProprietary
Context128K
Score23

Knowledge

Claude Sonnet 4.6

Claude Sonnet 4.6

96

Kimi K2

29.8

99
MMLU
32
97
GPQA
31
95
SuperGPQA
29
93
OpenBookQA
27

Coding

Claude Sonnet 4.6

Claude Sonnet 4.6

93

Kimi K2

24

93
HumanEval
24

Mathematics

Claude Sonnet 4.6

Claude Sonnet 4.6

97.1

Kimi K2

31

99
AIME 2023
32
99
AIME 2024
34
98
AIME 2025
33
95
HMMT Feb 2023
28
97
HMMT Feb 2024
30
96
HMMT Feb 2025
29
96
BRUMO 2025
31

Reasoning

Claude Sonnet 4.6

Claude Sonnet 4.6

94

Kimi K2

29

95
SimpleQA
30
93
MuSR
28

Frequently Asked Questions

Which is better, Claude Sonnet 4.6 or Kimi K2?

Claude Sonnet 4.6 scores higher overall with 80 vs 23, a difference of 57 points across all benchmarks.

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

Claude Sonnet 4.6 leads in knowledge tasks with an average score of 96 vs 29.8.

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

Claude Sonnet 4.6 leads in coding with an average score of 93 vs 24.

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

Claude Sonnet 4.6 leads in math with an average score of 97.1 vs 31.

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

Claude Sonnet 4.6 leads in reasoning with an average score of 94 vs 29.

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