benchlm.ai

Claude Sonnet 4.5 vs DeepSeekMath V2

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

Quick Verdict

Claude Sonnet 4.5 wins overall with a score of 74 vs 64 (10 point difference).Claude Sonnet 4.5 wins 4 out of 4 categories.

Claude Sonnet 4.5

CreatorAnthropic
TypeProprietary
Context1M
Score74

DeepSeekMath V2

CreatorDeepSeek
TypeOpen Weight
Context128K
Score64

Knowledge

Claude Sonnet 4.5

Claude Sonnet 4.5

92

DeepSeekMath V2

77.8

95
MMLU
80
93
GPQA
79
91
SuperGPQA
77
89
OpenBookQA
75

Coding

Claude Sonnet 4.5

Claude Sonnet 4.5

87

DeepSeekMath V2

72

87
HumanEval
72

Mathematics

Claude Sonnet 4.5

Claude Sonnet 4.5

96

DeepSeekMath V2

79

97
AIME 2023
80
99
AIME 2024
82
98
AIME 2025
81
93
HMMT Feb 2023
76
95
HMMT Feb 2024
78
94
HMMT Feb 2025
77
96
BRUMO 2025
79

Reasoning

Claude Sonnet 4.5

Claude Sonnet 4.5

90

DeepSeekMath V2

76

91
SimpleQA
77
89
MuSR
75

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or DeepSeekMath V2?

Claude Sonnet 4.5 scores higher overall with 74 vs 64, a difference of 10 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or DeepSeekMath V2?

Claude Sonnet 4.5 leads in knowledge tasks with an average score of 92 vs 77.8.

Which is better for coding, Claude Sonnet 4.5 or DeepSeekMath V2?

Claude Sonnet 4.5 leads in coding with an average score of 87 vs 72.

Which is better for math, Claude Sonnet 4.5 or DeepSeekMath V2?

Claude Sonnet 4.5 leads in math with an average score of 96 vs 79.

Which is better for reasoning, Claude Sonnet 4.5 or DeepSeekMath V2?

Claude Sonnet 4.5 leads in reasoning with an average score of 90 vs 76.

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