DeepSeek V3.2 (Thinking) vs GPT-5 (high)

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

Quick Verdict

GPT-5 (high) wins overall with a score of 72 vs 69 (3 point difference).GPT-5 (high) wins 4 out of 4 categories.

Knowledge

GPT-5 (high)

DeepSeek V3.2 (Thinking)

84

GPT-5 (high)

90

87
MMLU
93
85
GPQA
91
83
SuperGPQA
89
81
OpenBookQA
87

Coding

GPT-5 (high)

DeepSeek V3.2 (Thinking)

79

GPT-5 (high)

85

79
HumanEval
85

Mathematics

GPT-5 (high)

DeepSeek V3.2 (Thinking)

86

GPT-5 (high)

94

87
AIME 2023
95
89
AIME 2024
97
88
AIME 2025
96
83
HMMT Feb 2023
91
85
HMMT Feb 2024
93
84
HMMT Feb 2025
92
86
BRUMO 2025
94

Reasoning

GPT-5 (high)

DeepSeek V3.2 (Thinking)

82

GPT-5 (high)

88

83
SimpleQA
89
81
MuSR
87

Frequently Asked Questions

Which is better, DeepSeek V3.2 (Thinking) or GPT-5 (high)?

GPT-5 (high) scores higher overall with 72 vs 69, a difference of 3 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.2 (Thinking) or GPT-5 (high)?

GPT-5 (high) leads in knowledge tasks with an average score of 90 vs 84.

Which is better for coding, DeepSeek V3.2 (Thinking) or GPT-5 (high)?

GPT-5 (high) leads in coding with an average score of 85 vs 79.

Which is better for math, DeepSeek V3.2 (Thinking) or GPT-5 (high)?

GPT-5 (high) leads in math with an average score of 94 vs 86.

Which is better for reasoning, DeepSeek V3.2 (Thinking) or GPT-5 (high)?

GPT-5 (high) leads in reasoning with an average score of 88 vs 82.