benchlm.ai

Claude Haiku 4.5 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 57 (14 point difference).Kimi K2.5 (Reasoning) wins 4 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

Kimi K2.5 (Reasoning)

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score71

Knowledge

Kimi K2.5 (Reasoning)

Claude Haiku 4.5

65.8

Kimi K2.5 (Reasoning)

89

68
MMLU
92
67
GPQA
90
65
SuperGPQA
88
63
OpenBookQA
86

Coding

Kimi K2.5 (Reasoning)

Claude Haiku 4.5

60

Kimi K2.5 (Reasoning)

84

60
HumanEval
84

Mathematics

Kimi K2.5 (Reasoning)

Claude Haiku 4.5

67

Kimi K2.5 (Reasoning)

93

68
AIME 2023
94
70
AIME 2024
96
69
AIME 2025
95
64
HMMT Feb 2023
90
66
HMMT Feb 2024
92
65
HMMT Feb 2025
91
67
BRUMO 2025
93

Reasoning

Kimi K2.5 (Reasoning)

Claude Haiku 4.5

64

Kimi K2.5 (Reasoning)

87

65
SimpleQA
88
63
MuSR
86

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) scores higher overall with 71 vs 57, a difference of 14 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in knowledge tasks with an average score of 89 vs 65.8.

Which is better for coding, Claude Haiku 4.5 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, Claude Haiku 4.5 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in math with an average score of 93 vs 67.

Which is better for reasoning, Claude Haiku 4.5 or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in reasoning with an average score of 87 vs 64.

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