benchlm.ai

Claude 4 Sonnet vs Kimi K2.5

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

Quick Verdict

Kimi K2.5 wins overall with a score of 62 vs 59 (3 point difference).Kimi K2.5 wins 4 out of 4 categories.

Claude 4 Sonnet

CreatorAnthropic
TypeProprietary
Context200K
Score59

Kimi K2.5

CreatorMoonshot AI
TypeOpen Weight
Context128K
Score62

Knowledge

Kimi K2.5

Claude 4 Sonnet

71.5

Kimi K2.5

74.8

73
MMLU
77
73
GPQA
76
71
SuperGPQA
74
69
OpenBookQA
72

Coding

Kimi K2.5

Claude 4 Sonnet

65

Kimi K2.5

69

65
HumanEval
69

Mathematics

Kimi K2.5

Claude 4 Sonnet

72

Kimi K2.5

76

73
AIME 2023
77
75
AIME 2024
79
74
AIME 2025
78
69
HMMT Feb 2023
73
71
HMMT Feb 2024
75
70
HMMT Feb 2025
74
72
BRUMO 2025
76

Reasoning

Kimi K2.5

Claude 4 Sonnet

70

Kimi K2.5

73

71
SimpleQA
74
69
MuSR
72

Frequently Asked Questions

Which is better, Claude 4 Sonnet or Kimi K2.5?

Kimi K2.5 scores higher overall with 62 vs 59, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, Claude 4 Sonnet or Kimi K2.5?

Kimi K2.5 leads in knowledge tasks with an average score of 74.8 vs 71.5.

Which is better for coding, Claude 4 Sonnet or Kimi K2.5?

Kimi K2.5 leads in coding with an average score of 69 vs 65.

Which is better for math, Claude 4 Sonnet or Kimi K2.5?

Kimi K2.5 leads in math with an average score of 76 vs 72.

Which is better for reasoning, Claude 4 Sonnet or Kimi K2.5?

Kimi K2.5 leads in reasoning with an average score of 73 vs 70.

Related Comparisons

Claude 4 Sonnet vs GPT-5.4Claude 4 Sonnet vs Gemini 3.1 ProClaude 4 Sonnet vs Claude Opus 4.6Claude 4 Sonnet vs GPT-5.3 CodexClaude 4 Sonnet vs Grok 4.1Claude 4 Sonnet vs GPT-5.2