GPT-5.2 Pro vs DeepSeekMath V2

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

GPT-5.2 Pro is clearly ahead on the aggregate, 90 to 66. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5.2 Pro's sharpest advantage is in coding, where it averages 84.8 against 47.3. The single biggest benchmark swing on the page is SWE-bench Verified, 83 to 45.

GPT-5.2 Pro gives you the larger context window at 400K, compared with 128K for DeepSeekMath V2.

Quick Verdict

Pick GPT-5.2 Pro if you want the stronger benchmark profile. DeepSeekMath V2 only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

GPT-5.2 Pro

GPT-5.2 Pro

85.9

DeepSeekMath V2

63.9

88
Terminal-Bench 2.0
65
88
BrowseComp
66
82
OSWorld-Verified
61

Coding

GPT-5.2 Pro

GPT-5.2 Pro

84.8

DeepSeekMath V2

47.3

93
HumanEval
72
83
SWE-bench Verified
45
81
LiveCodeBench
44
89
SWE-bench Pro
51

Multimodal & Grounded

GPT-5.2 Pro

GPT-5.2 Pro

96

DeepSeekMath V2

68.1

96
MMMU-Pro
64
96
OfficeQA Pro
73

Reasoning

GPT-5.2 Pro

GPT-5.2 Pro

95.2

DeepSeekMath V2

75.9

97
SimpleQA
77
95
MuSR
75
98
BBH
86
93
LongBench v2
75
95
MRCRv2
72

Knowledge

GPT-5.2 Pro

GPT-5.2 Pro

81.5

DeepSeekMath V2

61

99
MMLU
80
99
GPQA
79
97
SuperGPQA
77
95
OpenBookQA
75
90
MMLU-Pro
74
44
HLE
18
93
FrontierScience
73

Instruction Following

GPT-5.2 Pro

GPT-5.2 Pro

95

DeepSeekMath V2

83

95
IFEval
83

Multilingual

GPT-5.2 Pro

GPT-5.2 Pro

93.4

DeepSeekMath V2

82.5

96
MGSM
87
92
MMLU-ProX
80

Mathematics

GPT-5.2 Pro

GPT-5.2 Pro

98.2

DeepSeekMath V2

84

99
AIME 2023
80
99
AIME 2024
82
99
AIME 2025
81
96
HMMT Feb 2023
76
98
HMMT Feb 2024
78
97
HMMT Feb 2025
77
97
BRUMO 2025
79
99
MATH-500
90

Frequently Asked Questions

Which is better, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro is ahead overall, 90 to 66. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 83 and 45.

Which is better for knowledge tasks, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for knowledge tasks in this comparison, averaging 81.5 versus 61. Inside this category, HLE is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for coding in this comparison, averaging 84.8 versus 47.3. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for math in this comparison, averaging 98.2 versus 84. Inside this category, HMMT Feb 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for reasoning in this comparison, averaging 95.2 versus 75.9. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for agentic tasks in this comparison, averaging 85.9 versus 63.9. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for multimodal and grounded tasks in this comparison, averaging 96 versus 68.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for instruction following in this comparison, averaging 95 versus 83. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5.2 Pro or DeepSeekMath V2?

GPT-5.2 Pro has the edge for multilingual tasks in this comparison, averaging 93.4 versus 82.5. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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