benchlm.ai

Claude Sonnet 4.5 vs DeepSeek V3.2

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 66 (8 point difference).Claude Sonnet 4.5 wins 4 out of 4 categories.

Claude Sonnet 4.5

CreatorAnthropic
TypeProprietary
Context1M
Score74

DeepSeek V3.2

CreatorDeepSeek
TypeOpen Weight
Context128K
Score66

Knowledge

Claude Sonnet 4.5

Claude Sonnet 4.5

92

DeepSeek V3.2

81.8

95
MMLU
84
93
GPQA
83
91
SuperGPQA
81
89
OpenBookQA
79

Coding

Claude Sonnet 4.5

Claude Sonnet 4.5

87

DeepSeek V3.2

76

87
HumanEval
76

Mathematics

Claude Sonnet 4.5

Claude Sonnet 4.5

96

DeepSeek V3.2

83

97
AIME 2023
84
99
AIME 2024
86
98
AIME 2025
85
93
HMMT Feb 2023
80
95
HMMT Feb 2024
82
94
HMMT Feb 2025
81
96
BRUMO 2025
83

Reasoning

Claude Sonnet 4.5

Claude Sonnet 4.5

90

DeepSeek V3.2

80

91
SimpleQA
81
89
MuSR
79

Frequently Asked Questions

Which is better, Claude Sonnet 4.5 or DeepSeek V3.2?

Claude Sonnet 4.5 scores higher overall with 74 vs 66, a difference of 8 points across all benchmarks.

Which is better for knowledge tasks, Claude Sonnet 4.5 or DeepSeek V3.2?

Claude Sonnet 4.5 leads in knowledge tasks with an average score of 92 vs 81.8.

Which is better for coding, Claude Sonnet 4.5 or DeepSeek V3.2?

Claude Sonnet 4.5 leads in coding with an average score of 87 vs 76.

Which is better for math, Claude Sonnet 4.5 or DeepSeek V3.2?

Claude Sonnet 4.5 leads in math with an average score of 96 vs 83.

Which is better for reasoning, Claude Sonnet 4.5 or DeepSeek V3.2?

Claude Sonnet 4.5 leads in reasoning with an average score of 90 vs 80.

Related Comparisons

Claude Sonnet 4.5 vs GPT-5.4Claude Sonnet 4.5 vs Gemini 3.1 ProClaude Sonnet 4.5 vs Claude Opus 4.6Claude Sonnet 4.5 vs GPT-5.3 CodexClaude Sonnet 4.5 vs Grok 4.1Claude Sonnet 4.5 vs GPT-5.2