DeepSeekMath V2 vs GPT-4o mini

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

DeepSeekMath V2 is clearly ahead on the aggregate, 71 to 43. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

DeepSeekMath V2 is the reasoning model in the pair, while GPT-4o mini is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use.

Quick Verdict

Pick DeepSeekMath V2 if you want the stronger benchmark profile. GPT-4o mini only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.

Knowledge

GPT-4o mini

DeepSeekMath V2

67.2

GPT-4o mini

82

80
MMLU
82
79
GPQA
-
77
SuperGPQA
-
75
OpenBookQA
-
74
MMLU-Pro
-
18
HLE
-

Coding

GPT-4o mini

DeepSeekMath V2

53.7

GPT-4o mini

87.2

72
HumanEval
87.2
45
SWE-bench Verified
-
44
LiveCodeBench
-

Mathematics

DeepSeekMath V2
80
AIME 2023
-
82
AIME 2024
-
81
AIME 2025
-
76
HMMT Feb 2023
-
78
HMMT Feb 2024
-
77
HMMT Feb 2025
-
79
BRUMO 2025
-
90
MATH-500
-

Reasoning

DeepSeekMath V2
77
SimpleQA
-
75
MuSR
-
86
BBH
-

Instruction Following

DeepSeekMath V2
83
IFEval
-

Multilingual

Tie

DeepSeekMath V2

87

GPT-4o mini

87

87
MGSM
87

Frequently Asked Questions

Which is better, DeepSeekMath V2 or GPT-4o mini?

DeepSeekMath V2 is ahead overall, 71 to 43. The biggest single separator in this matchup is HumanEval, where the scores are 72 and 87.2.

Which is better for knowledge tasks, DeepSeekMath V2 or GPT-4o mini?

GPT-4o mini has the edge for knowledge tasks in this comparison, averaging 82 versus 67.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeekMath V2 or GPT-4o mini?

GPT-4o mini has the edge for coding in this comparison, averaging 87.2 versus 53.7. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, DeepSeekMath V2 or GPT-4o mini?

DeepSeekMath V2 and GPT-4o mini are effectively tied for multilingual tasks here, both landing at 87 on average.

Last updated: March 9, 2026

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