DeepSeek V3.2 vs GPT-OSS 120B

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

Quick Verdict

DeepSeek V3.2 wins overall with a score of 66 vs 42 (24 point difference).DeepSeek V3.2 wins 4 out of 4 categories.

Knowledge

DeepSeek V3.2

DeepSeek V3.2

81.8

GPT-OSS 120B

48.8

84
MMLU
51
83
GPQA
50
81
SuperGPQA
48
79
OpenBookQA
46

Coding

DeepSeek V3.2

DeepSeek V3.2

76

GPT-OSS 120B

43

76
HumanEval
43

Mathematics

DeepSeek V3.2

DeepSeek V3.2

83

GPT-OSS 120B

50

84
AIME 2023
51
86
AIME 2024
53
85
AIME 2025
52
80
HMMT Feb 2023
47
82
HMMT Feb 2024
49
81
HMMT Feb 2025
48
83
BRUMO 2025
50

Reasoning

DeepSeek V3.2

DeepSeek V3.2

80

GPT-OSS 120B

48

81
SimpleQA
49
79
MuSR
47

Frequently Asked Questions

Which is better, DeepSeek V3.2 or GPT-OSS 120B?

DeepSeek V3.2 scores higher overall with 66 vs 42, a difference of 24 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.2 or GPT-OSS 120B?

DeepSeek V3.2 leads in knowledge tasks with an average score of 81.8 vs 48.8.

Which is better for coding, DeepSeek V3.2 or GPT-OSS 120B?

DeepSeek V3.2 leads in coding with an average score of 76 vs 43.

Which is better for math, DeepSeek V3.2 or GPT-OSS 120B?

DeepSeek V3.2 leads in math with an average score of 83 vs 50.

Which is better for reasoning, DeepSeek V3.2 or GPT-OSS 120B?

DeepSeek V3.2 leads in reasoning with an average score of 80 vs 48.