DeepSeek V3.1 (Reasoning) vs o4-mini (high)

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

Quick Verdict

o4-mini (high) wins overall with a score of 65 vs 25 (40 point difference).o4-mini (high) wins 4 out of 4 categories.

Knowledge

o4-mini (high)

DeepSeek V3.1 (Reasoning)

31.8

o4-mini (high)

80.5

34
MMLU
82
33
GPQA
82
31
SuperGPQA
80
29
OpenBookQA
78

Coding

o4-mini (high)

DeepSeek V3.1 (Reasoning)

26

o4-mini (high)

74

26
HumanEval
74

Mathematics

o4-mini (high)

DeepSeek V3.1 (Reasoning)

33

o4-mini (high)

82

34
AIME 2023
83
36
AIME 2024
85
35
AIME 2025
84
30
HMMT Feb 2023
79
32
HMMT Feb 2024
81
31
HMMT Feb 2025
80
33
BRUMO 2025
82

Reasoning

o4-mini (high)

DeepSeek V3.1 (Reasoning)

31

o4-mini (high)

79

32
SimpleQA
80
30
MuSR
78

Frequently Asked Questions

Which is better, DeepSeek V3.1 (Reasoning) or o4-mini (high)?

o4-mini (high) scores higher overall with 65 vs 25, a difference of 40 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 (Reasoning) or o4-mini (high)?

o4-mini (high) leads in knowledge tasks with an average score of 80.5 vs 31.8.

Which is better for coding, DeepSeek V3.1 (Reasoning) or o4-mini (high)?

o4-mini (high) leads in coding with an average score of 74 vs 26.

Which is better for math, DeepSeek V3.1 (Reasoning) or o4-mini (high)?

o4-mini (high) leads in math with an average score of 82 vs 33.

Which is better for reasoning, DeepSeek V3.1 (Reasoning) or o4-mini (high)?

o4-mini (high) leads in reasoning with an average score of 79 vs 31.