DeepSeek V3.1 vs o3

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

Quick Verdict

o3 wins overall with a score of 67 vs 24 (43 point difference).o3 wins 4 out of 4 categories.

Knowledge

o3

DeepSeek V3.1

30.8

o3

85.3

33
MMLU
86
32
GPQA
87
30
SuperGPQA
85
28
OpenBookQA
83

Coding

o3

DeepSeek V3.1

25

o3

78

25
HumanEval
78

Mathematics

o3

DeepSeek V3.1

32

o3

87

33
AIME 2023
88
35
AIME 2024
90
34
AIME 2025
89
29
HMMT Feb 2023
84
31
HMMT Feb 2024
86
30
HMMT Feb 2025
85
32
BRUMO 2025
87

Reasoning

o3

DeepSeek V3.1

30

o3

83

31
SimpleQA
84
29
MuSR
82

Frequently Asked Questions

Which is better, DeepSeek V3.1 or o3?

o3 scores higher overall with 67 vs 24, a difference of 43 points across all benchmarks.

Which is better for knowledge tasks, DeepSeek V3.1 or o3?

o3 leads in knowledge tasks with an average score of 85.3 vs 30.8.

Which is better for coding, DeepSeek V3.1 or o3?

o3 leads in coding with an average score of 78 vs 25.

Which is better for math, DeepSeek V3.1 or o3?

o3 leads in math with an average score of 87 vs 32.

Which is better for reasoning, DeepSeek V3.1 or o3?

o3 leads in reasoning with an average score of 83 vs 30.