benchlm.ai

Claude Haiku 4.5 vs Kimi K2

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

Quick Verdict

Claude Haiku 4.5 wins overall with a score of 57 vs 23 (34 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

Kimi K2

CreatorMoonshot AI
TypeProprietary
Context128K
Score23

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

Kimi K2

29.8

68
MMLU
32
67
GPQA
31
65
SuperGPQA
29
63
OpenBookQA
27

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

Kimi K2

24

60
HumanEval
24

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

Kimi K2

31

68
AIME 2023
32
70
AIME 2024
34
69
AIME 2025
33
64
HMMT Feb 2023
28
66
HMMT Feb 2024
30
65
HMMT Feb 2025
29
67
BRUMO 2025
31

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

Kimi K2

29

65
SimpleQA
30
63
MuSR
28

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Kimi K2?

Claude Haiku 4.5 scores higher overall with 57 vs 23, a difference of 34 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Kimi K2?

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 29.8.

Which is better for coding, Claude Haiku 4.5 or Kimi K2?

Claude Haiku 4.5 leads in coding with an average score of 60 vs 24.

Which is better for math, Claude Haiku 4.5 or Kimi K2?

Claude Haiku 4.5 leads in math with an average score of 67 vs 31.

Which is better for reasoning, Claude Haiku 4.5 or Kimi K2?

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 29.

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