benchlm.ai

Claude 3 Opus 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 51 (20 point difference).Kimi K2.5 (Reasoning) wins 4 out of 4 categories.

Claude 3 Opus

CreatorAnthropic
TypeProprietary
Context200K
Score51

Kimi K2.5 (Reasoning)

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score71

Knowledge

Kimi K2.5 (Reasoning)

Claude 3 Opus

59.5

Kimi K2.5 (Reasoning)

89

61
MMLU
92
61
GPQA
90
59
SuperGPQA
88
57
OpenBookQA
86

Coding

Kimi K2.5 (Reasoning)

Claude 3 Opus

53

Kimi K2.5 (Reasoning)

84

53
HumanEval
84

Mathematics

Kimi K2.5 (Reasoning)

Claude 3 Opus

60

Kimi K2.5 (Reasoning)

93

61
AIME 2023
94
63
AIME 2024
96
62
AIME 2025
95
57
HMMT Feb 2023
90
59
HMMT Feb 2024
92
58
HMMT Feb 2025
91
60
BRUMO 2025
93

Reasoning

Kimi K2.5 (Reasoning)

Claude 3 Opus

58

Kimi K2.5 (Reasoning)

87

59
SimpleQA
88
57
MuSR
86

Frequently Asked Questions

Which is better, Claude 3 Opus or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) scores higher overall with 71 vs 51, a difference of 20 points across all benchmarks.

Which is better for knowledge tasks, Claude 3 Opus or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in knowledge tasks with an average score of 89 vs 59.5.

Which is better for coding, Claude 3 Opus or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in coding with an average score of 84 vs 53.

Which is better for math, Claude 3 Opus or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in math with an average score of 93 vs 60.

Which is better for reasoning, Claude 3 Opus or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) leads in reasoning with an average score of 87 vs 58.

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